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  1. alex09x/kyb

    KYB (Know Your Business) is a Rust/axum server that stores agent-written knowledge, incident reports and tasks as Markdown files in Git, one commit per change. Search is hybrid: Tantivy BM25 fused by reciprocal rank with local multilingual-e5-small ONNX vectors, and it can query historical versions or "as of" a date. It ships a kyb CLI, a native MCP endpoint (Claude Code, Codex, Antigravity, Gemini CLI), an installable agent skill, token auth with per-write attribution trailers, secret scanning on writes, and a web console. It targets persistent shared operational memory for multi-agent, multi-machine fleets.

    github.comrepoAdded 17 Oct 2026🧠 AI

  2. sakidekin/CVE-2026-41940-PoC

    This repository hosts a proof-of-concept for CVE-2026-41940, described as a CVSS 10.0 unauthenticated authentication bypass in cPanel and WHM caused by CRLF injection into server-side session files via the Authorization header. The accompanying Python tool (cve.py) can detect vulnerable cPanel/WHM instances, retrieve system and account information, and perform post-exploitation actions such as running OS commands, changing the root password, and opening an interactive WHM shell. It also supports bulk scanning workflows piped from subfinder, httpx, and Shodan.

    github.comrepoAdded 23 Oct 2026, published 11 Oct 2026🛡️ Security

  3. Dark Web Informer (@DarkWebInformer) on X

    Infoooze is an open-source command-line OSINT reconnaissance toolkit (github.com/devxprite/infoooze) that consolidates common footprinting tasks into one CLI: username enumeration across platforms, email discovery, subdomain enumeration, port scanning, WHOIS/DNS lookups, IP/HTTP header analysis, EXIF metadata extraction, GitHub recon, and URL scanning/expansion. It automatically saves results, making it a lightweight all-in-one alternative to running several separate recon tools.

    x.comrepoPublished and added 8 Oct 2026🛡️ Security

  4. chainguard-dev/malcontent

    malcontent is Chainguard's open-source malware/supply-chain discovery tool that analyzes binaries (ELF, Mach-O, PE, a.out) and scripting-language source across Linux, macOS and Windows using 14,500+ YARA rules (including third-party rules from Avast, Elastic, FireEye, Mandiant, Nextron and ReversingLabs). Its standout feature is differential analysis ("mal diff"), which compares two versions of a build artifact or OCI image against a known-good baseline to surface newly introduced risky behaviors — the technique the project demonstrates on the 3CX supply-chain compromise by flagging unexpected high-risk changes to libffmpeg. It also supports threshold-based scanning ("mal scan") and unfiltered capability enumeration ("mal analyze"), and is designed to run inside CI/CD pipelines, including air-gapped environments via embedded rules.

    github.comrepoAdded 8 Oct 2026🛡️ Security

  5. target/strelka

    Strelka is Target's open-source, container-based real-time file scanning system for threat hunting, threat detection, and incident response, built in Go and Python. It runs 50+ scanners (YARA, PE parsing, encrypted ZIP cracking, entropy analysis, etc.) to extract metadata and content from files at enterprise scale, which can feed a SIEM for alerting on suspicious artifacts like an Emotet-laden encrypted ZIP payload.

    github.comrepoAdded 8 Oct 2026🛡️ Security

  6. deepfence/YaraHunter

    YaraHunter is Deepfence's open-source scanner that applies YARA rulesets against container images, running Docker containers, and filesystems to detect indicators of compromise such as malware and cryptominers. It supports CI/CD build-time scanning, at-rest image scanning, and runtime container scanning, with JSON output for automation, and is designed to eventually integrate into the Deepfence ThreatMapper platform. The README walks through detecting the XMRig cryptominer inside a container image as a worked example.

    github.comrepoAdded 8 Oct 2026🛡️ Security

  7. Dark Web Informer (@DarkWebInformer) on X

    A public PoC chains CVE-2026-42589 and CVE-2026-40281 to achieve unauthenticated remote code execution against Gotenberg (a document/PDF-conversion microservice), abusing metadata injection flaws in the /forms/pdfengines/metadata/write endpoint. The tool supports vulnerability detection, interactive command execution, reverse shell delivery, and multi-target scanning against Gotenberg versions ≤8.30.1 (patched in 8.31.0).

    x.comrepoPublished and added 5 Oct 2026🛡️ Security

  8. DeepZero

    DeepZero is an open-source orchestration engine that lets researchers define vulnerability-research pipelines declaratively in YAML, handling parallel execution (ThreadPoolExecutor), resumable/fault-tolerant state, and LLM-assessment stages via LiteLLM/Jinja2 prompts. It ships example processors for Ghidra headless decompilation, LOLDrivers.io hash exclusion filtering, PE header/driver metadata extraction, and batch Semgrep scanning, with a dedicated pipeline for BYOVD kernel driver vulnerability research. An extensibility model lets users plug in custom Python processors referenced by path in the YAML config.

    github.comrepoAdded 3 Oct 2026🛡️ Security

  9. AI-Infra-Guard (A.I.G) — Tencent Zhuque Lab

    AI-Infra-Guard (A.I.G) is Tencent Zhuque Lab's open-source AI red-teaming platform combining AI infrastructure vulnerability scanning (2000+ CVE rules covering vLLM, llama.cpp, LangFlow, n8n, MLflow and 145+ other AI components), MCP server/skill security scanning, LLM API poisoning detection, and multi-turn jailbreak evaluation (Many-Shot, PAIR, GOAT, ActorAttack). It ships CLI tools (skill-scan, mcp-scan, agent-scan), a Docker-deployed web UI, and has produced original research including FORGE-Bench (loss-of-control benchmark), RogueHandoff-20, and SkillJack (persistent skill backdoors), with talks at Black Hat Europe 2025 on MCP security.

    github.comrepoAdded 30 Sep 2026🛡️ Security

  10. SpecterOps/Blacklight — local AI agent attack surface mapping toolkit

    Blacklight is a SpecterOps toolkit for endpoint forensics on AI coding agents, split into Scout (bounded metadata/filesystem triage across Codex, Claude Code, Cursor, Antigravity CLI, and Grok that finds candidate session artifacts without reading their contents) and Session Analysis (a Python CLI that parses selected JSONL/SQLite session downloads from Codex, Claude Code, Cursor, and Antigravity CLI into ranked, redacted local reports). It's built for investigators who need to identify and review AI agent session history on a host — surfacing config, auth metadata, and high-value indicators — while explicitly leaving secret scanning to external tooling; paths are informed by SpecterOps' Endpoint AI Agent Abuse (EAA) technique catalog.

    github.comrepoAdded 27 Sep 2026🛡️ Security

  11. graygnatconsole/mcp-audit-tool

    mcp-audit-tool is a dependency-light Python CLI that statically scans Claude Desktop, Cursor, Windsurf, Cline, Zed, and VS Code MCP configuration files for security issues, including hardcoded secrets, unpinned/rug-pull packages, pipe-to-shell installers, tool-poisoning via hidden instructions in tool descriptions, filesystem servers rooted at '/', and unauthenticated plaintext HTTP MCP endpoints. It auto-discovers configs across macOS/Linux/Windows, produces a security score/grade plus SARIF 2.1.0 output for GitHub Code Scanning, and is built around the OWASP MCP Top 10 categories with a CI/CD example that fails builds on severity thresholds. The roadmap adds live server probing over stdio/SSE for runtime rug-pull detection and an ML-based prompt-injection classifier for tool descriptions.

    github.comrepoPublished and added 26 Sep 2026🛡️ Security

  12. git-pkgs — dependency history & supply-chain analysis for git repos

    git-pkgs is a Go rewrite of a Ruby tool that adds a git subcommand for tracking dependency changes across a repository's history, indexing manifests/lockfiles from 36+ package managers (npm, RubyGems, Cargo, PyPI, Maven, Composer, Go modules, etc.) into a local SQLite database. Beyond history/blame/diff, it offers supply-chain security commands: `vulns` (OSV-based CVE scanning with SARIF output for GitHub code scanning, plus blame/praise/exposure for remediation metrics), `licenses` (with drift detection and CI-friendly exit codes), `deprecated`, `provenance` (trusted-publishing/attestation checks), `integrity` (lockfile hash drift detection), `maintainers`/`health` (via ecosyste.ms metadata), and `sbom` export in CycloneDX/SPDX. It also supports a dependency-aware `bisect` to find when a vulnerability, license change, or capability (e.g. network access) was introduced, and ships GitHub Actions for CI integration.

    github.comrepoAdded 25 Sep 2026🛡️ Security

  13. shai-hulud-detect: multi-ecosystem npm/PyPI/Composer/Crates/Go/Hex/RubyGems supply-chain worm scanner

    shai-hulud-detect is a dependency-free Bash scanner that checks projects against a 5,782-entry list of compromised npm, PyPI, Composer, Crates, Go, Hex, and RubyGems package versions, plus content-pattern indicators of compromise (malicious file hashes, C2 domains, dead-man's-switch artifacts, forged commits, suspicious lifecycle hooks) tied to the Shai-Hulud supply-chain attack waves. It supports single-project and bulk scanning, CI-friendly exit codes, JSON/log output for pipeline gating, and a --check-host mode to detect the May 2026 gh-token-monitor/kitty-monitor persistence daemons that wipe hosts if their monitored GitHub token is revoked (with a documented safe remediation order). Detection is read-only; new package entries are sourced from named threat-research firms (Socket, StepSecurity, Aikido, Snyk, JFrog, Wiz, Semgrep, SafeDep, GitGuardian, OX Security) and cited in PRs.

    github.comrepoAdded 23 Sep 2026🛡️ Security

  14. nealbridges/VulnHunter

    A maintained, harness-portable fork of Capital One's open-source VulnHunter — an agentic AI tool that performs attacker-first forward analysis on source code to find exploitable vulnerabilities, falsify weak findings, and produce evidence-backed PoCs rather than pattern-matched SAST alerts. This fork adds containerized (Docker-based) exploit validation, measured-impact PoCs (rows leaked, amplification factor, etc.), and portability across agent harnesses (Claude Code, Codex, Grok, etc.) via environment-contract prompt files, plus an unattended operator (vulnhunter-run) and batch-scanning/benchmark harness tested against OWASP NodeGoat, Juice Shop, and WebGoat.

    github.comrepoAdded 6 Oct 2026, published 22 Sep 2026🛡️ Security

  15. StellarFoundry/soroban-security-scanner

    soroban-scan is an open-source, deterministic static analyzer for Stellar Soroban smart contracts and Rust projects. It ships 19 Soroban-aware detectors (SS-001 to SS-033) covering missing authorization, re-initialization, cross-contract call ordering, unchecked arithmetic and storage or resource misuse. Output includes JSON, SARIF 2.1.0 and GitHub annotations, with baselines and a PR-scanning Action. The project describes itself as early development.

    github.comrepoAdded 28 Oct 2026, published 21 Sep 2026🛡️ Security

  16. Betterleaks — secrets scanner from the Gitleaks creator

    Betterleaks is a configurable, fast secrets scanner maintained by the original Gitleaks author and team, capable of scanning git history, local filesystems, stdin, GitHub/GitLab orgs and specific PRs/MRs, Hugging Face models/datasets, and public S3/R2 buckets. Detection rules use regex plus an Expr (with legacy CEL compatibility) based prefilter/filter/validate pipeline, allowing entropy checks, keyword gating, and live API validation of found credentials (e.g. checking a GitHub PAT against api.github.com). It's used in production by projects like Aikido Security and shipped inside MegaLinter.

    github.comrepoAdded 18 Sep 2026🛡️ Security

  17. sage — Agent Detection & Response (ADR) for AI coding agents

    Sage is an "Agent Detection & Response" (ADR) security layer that intercepts tool calls made by AI coding agents — shell commands, URL fetches, file writes — and screens them through multiple detection layers before execution. It combines cloud URL reputation, 300+ YAML local heuristics, a two-tier (heuristic + fine-tuned ML) prompt-injection detector for fetched content, npm/PyPI package supply-chain checks (registry existence, file reputation, age), installed-plugin scanning at session start, and Windows AMSI integration. It ships as a plugin for Claude Code, Cursor, VS Code, OpenClaw, and OpenCode, and is published by Gen Digital (also distributed under the Norton/Avast Sage branding).

    github.comrepoAdded 10 Sep 2026🛡️ Security

  18. mukul975/cve-mcp-server

    cve-mcp-server is a Model Context Protocol server that gives Claude direct access to 28 security tools spanning 24 APIs (NVD, EPSS, CISA KEV, OSV.dev, GitHub GHSA, MITRE ATT&CK, AbuseIPDB, GreyNoise, Shodan, VirusTotal, MalwareBazaar, ThreatFox, Ransomwhere, and more), fronted by a one-call triage_cve orchestrator. It computes a composite 0-100 risk score from CVSS, EPSS, KEV status, and PoC availability (with a hard CISA KEV override forcing CRITICAL/≥76), supports dependency scanning via OSV, IP/domain reputation lookups with private-IP blocking, and ships an SSVC v2 gated decision mode plus audit logging and XML-bomb protections via defusedxml.

    github.comrepoPublished and added 7 Sep 2026🛡️ Security

  19. eldarshiraliyev/BugScanner

    BugScanner is an asyncio/httpx Python framework for recon and automated web vulnerability scanning, with a React and FastAPI dashboard. It covers subdomain enumeration (crt.sh, DNS brute force), TCP port scanning, fingerprinting, and modules for XSS, SQLi, CORS, SSRF, open redirect, JWT, IDOR and business logic, plus a Nuclei wrapper. A 5-rule false-positive filter with SPA detection, adaptive rate limiting, WAF detection and SARIF export are included.

    github.comrepoAdded 20 Oct 2026, published 5 Sep 2026🛡️ Security

  20. PackageGuard

    PackageGuard is an open-source .NET CLI tool that scans NuGet, npm, pnpm and Yarn dependencies (direct and transitive) across a codebase, enforcing hierarchically-configured allow- and deny-lists for licenses, packages and versions. It scores each package's Legal, Security and Operational risk using signals like OSV vulnerability data, maintainer activity, package signing and release cadence, and can emit a CycloneDX or SPDX SBOM enriched with OSV vulnerability data, plus console, HTML and SARIF output for CI/GitHub code scanning. It's positioned as a free alternative to commercial supply-chain tools like Black Duck and Snyk.

    github.comrepoPublished and added 31 Aug 2026🛡️ Security

  21. Rekono

    Rekono is an open-source pentesting automation platform that chains 19 hacking tools (Nmap, Nuclei, Metasploit, OWASP ZAP, Nikto, Gitleaks, SearchSploit, etc.) so that output from one tool feeds the next, automatically covering recon, service enumeration, vulnerability scanning, and exploit correlation. It deduplicates findings into a single attack-surface inventory per host/port, enriches CVEs with community context for prioritization, tracks fixed/reopened vulnerabilities, and supports team collaboration, scheduled scans, Telegram/email alerts, and report generation for engagements.

    github.comrepoAdded 3 Sep 2026, published 27 Aug 2026🛡️ Security

  22. Ashmmmm/crockTail

    crockTail is a passive OSINT tool that, given a domain, aggregates DNS records, IP/ASN ownership, TLS certificate details, WHOIS data, and crt.sh certificate-transparency history into a single report. It layers analysis on top of the raw data: plain-language warning/info observations (near-expiry or expired certs, recently registered domains, unusual reissuance, historical subdomains from CT logs), multi-resolver (Google vs Cloudflare) DNS cross-verification to flag possible tampering, and a 0-100 confidence score per scan based on module success and cross-check agreement. It supports batch domain queries and query logging, and is explicitly limited to passive lookups and a standard TLS handshake, no port scanning or active probing.

    github.comrepoAdded 30 Sep 2026, published 25 Aug 2026🛡️ Security

  23. duty1g/x64dbg-mcp-server

    x64dbg-MCP Server is a native, dependency-free Zig plugin for the x64dbg debugger that exposes 84 MCP tools and 22 event callbacks over Streamable HTTP and SSE transports, letting any MCP-compatible AI assistant drive breakpoints, stepping, memory reads/writes, register and stack inspection, pattern scanning, PE analysis, and module dumping. It implements the MCP 2024-11-05 spec with JSON-RPC 2.0, mandatory bearer-token auth, a Win32 config dialog, and cross-compiles to both x32 and x64 from a single codebase. The project targets AI-assisted reverse engineering and malware-analysis workflows, turning a traditional interactive debugger into an agent-controllable backend.

    github.comrepoAdded 2 Oct 2026, published 22 Aug 2026🧠 AI

  24. duty1g/x64dbg-mcp-server

    x64dbg-MCP Server is a native, zero-dependency MCP plugin (built in Zig) for the x64dbg Windows debugger that exposes its full API — breakpoints, stepping, memory allocation/read/write, registers, modules, threads, call stack, pattern scanning, xrefs, symbols, PE/OEP analysis and module dumping — as 84 MCP tools plus 22 event callbacks over Streamable HTTP and SSE transports with mandatory bearer-token auth. It lets any MCP-compatible AI assistant drive an interactive reverse-engineering session against a running process (e.g. load a binary, set a breakpoint, dump registers, step and inspect the stack) directly from inside x64dbg's address space, with no polling or external process required.

    github.comrepoAdded 2 Oct 2026, published 22 Aug 2026🛡️ Security

  25. vscan

    vscan is an open-source, lightweight, cross-platform website vulnerability scanner built for authorized security assessments. It combines port scanning and fingerprint identification (using a merged database of ~6,832 fingerprints from eHole, wappalyzergo, and local rules), login credential brute-forcing, sensitive file detection, and vulnerability PoC checks compatible with both Xray and Nuclei PoC formats. It supports flexible input (STDIN/host/IP/CIDR/URL/TXT) and output formats (JSON/TXT/CSV/STDOUT).

    github.comrepoPublished and added 15 Aug 2026🛡️ Security

  26. ops-engineering-skills

    ops-engineering-skills is an open-source library of 296 Agent Skills covering DevOps, DevSecOps, cloud, Kubernetes, CI/CD, GitOps, security scanning, SRE, compliance, databases, messaging, service mesh, serverless, internal developer platforms, MLOps and AgentOps. Each skill is written once to the open SKILL.md standard with machine-checkable frontmatter and eight required sections (prerequisites, steps, pitfalls with fixes, worked example), and works natively across Claude Code, GitHub Copilot, OpenAI Codex, Cursor and Gemini CLI without a translation layer. It ships an automated validator, cross-reference integrity checks, a marketplace/plugin structure for Claude Code, and a generic install.sh/npx installer for any Agent-Skills-compliant agent.

    github.comrepoAdded 22 Sep 2026, published 1 Aug 2026🧠 AI

  27. Slither

    Slither, developed by Trail of Bits, is a Python3-based static analysis framework for Solidity and Vyper smart contracts that runs a suite of vulnerability detectors, visualizes contract internals via 'printers', and exposes an API for writing custom analyses using its SlithIR intermediate representation. It integrates into Hardhat/Foundry/Brownie builds and CI (including GitHub code scanning), claims 99.9% parse coverage of public Solidity code and sub-second average analysis time per contract, and ships companion tools like slither-check-upgradeability, slither-prop, and slither-read-storage.

    github.comrepoPublished and added 31 Jul 2026🛡️ Security

  28. thewhiteh4t/FinalRecon

    FinalRecon is a Python-based OSINT/reconnaissance tool for web targets, gathering header info, whois data, SSL certificate details, crawling, DNS enumeration, subdomain discovery, port scanning, and directory search in a single utility. It's commonly used during the recon phase of web application pentests to consolidate multiple footprinting techniques into one CLI tool.

    github.comrepoPublished and added 31 Jul 2026🛡️ Security

  29. Beetle

    Beetle is an offline-first mobile application security platform that statically analyzes Android APKs and iOS IPAs (including Flutter and React Native apps), combining decompilation, taint analysis, secret/endpoint extraction, certificate and native-binary hardening checks, and CVE enrichment with explainable 'intelligence engines' (ownership, confidence, evidence selection, finding fusion) that correlate findings into evidence-backed attack chains. It maps results to OWASP MASVS/Mobile Top 10, provides source-level navigation, and exports SARIF, CycloneDX SBOM, and PDF reports, with optional (non-scanning) AI assistance via Claude, OpenAI, Gemini, DeepSeek, or local Ollama for explaining findings.

    github.comrepoPublished and added 31 Jul 2026🛡️ Security

  30. Talaria

    Talaria is a single-binary, pure-Go Linux privilege escalation scanner that enumerates misconfigurations (SUID/SGID, sudoers, capabilities, cron, Polkit JS rules, systemd EnvironmentFile overrides) and links them into confirmed multi-stage root-escalation chains using an embedded Dijkstra pathfinder. It runs read-only with no disk writes, executes in milliseconds, detects backport-aware 2026 Linux kernel vulnerabilities (Dirty Frag, Fragnesia, Copy Fail, DirtyClone, CIFSwitch, PinTheft, pedit COW), and exports JSON/SARIF for SIEM and GitHub Code Scanning integration.

    github.comrepoAdded 3 Sep 2026, published 31 Jul 2026🛡️ Security

  31. awesome-osint-arsenal

    An awesome-list repo that claims 753+ OSINT and security tools across 50 categories. Sections cover username, email, phone, domain/IP, geolocation, image, breach-search, dark web, web scanning and password-cracking tools, plus red team, blue team, DFIR, hardware and training sections. It ships multi-distro installer scripts (install.sh, osint.sh, redteam.sh, blueteam.sh, forensics.sh, hardware.sh, labs.sh, termux.sh) for Kali, Debian and Ubuntu, with partial Arch/Fedora support and a Termux subset. It also gives short usage walkthroughs such as a subfinder + amass + httpx recon chain. Some entries are dual-use (people search, face recognition, phone exploitation, IP camera dorking), and the README says the repo is for authorized research only.

    github.comrepoPublished and added 31 Jul 2026🛡️ Security

  32. hahwul/WebHackersWeapons

    WebHackersWeapons is a GitHub-hosted, community-curated list of tools commonly used by web hackers and bug bounty hunters. As an 'awesome list' style repo it aggregates recon, scanning, exploitation, and other web-hacking utilities in one place for practitioners to discover and adopt.

    github.comrepoPublished and added 31 Jul 2026🛡️ Security

  33. 1N3/Sn1per

    Sn1per is an open-source Community Edition offensive-security platform that automates reconnaissance, vulnerability scanning, and exploitation by orchestrating 90+ third-party tools such as Nmap, Metasploit, Burp Suite, and Nessus into unified scan modes (normal, stealth, discover, airstrike, nuke). It ships with 600+ exploits and 10,000+ detections, supports Docker deployment, workspace-based loot management, and scheduled scans for external attack surface management. Paid Professional and Enterprise tiers add a web UI, reporting exports, and a JSON API on top of the same source-available CLI scanning engine.

    github.comrepoPublished and added 26 Jul 2026🛡️ Security

  34. Bug Bounty Lab101

    Bug Bounty Lab101 is a workspace that structures the real HackerOne bug bounty workflow: document program scope, run scope-gated recon/vuln scanning via bugbounty-hunter.sh (backed by a 400+ tool arsenal spanning recon, DNS enumeration, web scanning, exploitation, and cloud/subdomain-takeover checks), then produce a triage-ready H1 report with Hacktivity dedup checks. It also integrates T3MP3ST, a separate multi-agent offensive framework that connects local AI coding agents (Claude Code, Codex) to automate target investigation, and ships a legacy-vm-practice lab (DVWA/Metasploitable-style) for safe skill-building outside real program scope.

    github.comrepoPublished and added 25 Jul 2026🛡️ Security

  35. Dalfox

    Dalfox is an open-source XSS scanning and parameter analysis tool, rewritten in Rust for v3 (previously Go, preserved on the v2 branch). It automates discovery via parameter mining and static/BAV analysis, detects reflected, stored, and DOM-based XSS with DOM/AST verification, and includes WAF fingerprinting with confidence scoring and bypass tracking, plus a REST API and MCP stdio server for extensibility.

    github.comrepoPublished and added 25 Jul 2026🛡️ Security

  36. BountyForge

    BountyForge is a Claude Code skill that spins up 8 specialized agents in parallel to hunt for vulnerabilities across web/API, smart contracts (EVM, Move, Solana, TRON), infrastructure, and supply-chain targets, then deduplicates and runs findings through a four-gate validation pipeline (Refutation, Reachability, Trigger, Impact) before CVSS-scoring them into submission-ready HackerOne/Bugcrowd/Intigriti/Immunefi reports. It orchestrates local tools (nmap, ffuf, sqlmap, amass, ZAP, Burp Suite) when Claude Code execution is enabled, integrates with a companion `bug-bounty-intelligence-mcp` MCP server for Solidity scanning via "Al-Mizaan v3" 7-gate deep validation, and also offers a paid Firecracker-microVM cloud version at bountyforge.xyz.

    github.comrepoPublished and added 22 Jul 2026🛡️ Security

  37. VulnHunter (Capital One)

    VulnHunter is Capital One's open-source agentic AI security scanner, implemented as a set of Claude Code skills (/vulnhunt, /vulnhunter-fix, /vulnhunt-fix-verify) that require Claude Opus. Instead of traditional sink-first SAST pattern matching, it reasons forward from attacker-accessible entry points (APIs, uploads, network messages), runs a 'falsification engine' to discard unexploitable findings, and generates evidence-backed exploit paths and targeted code fixes; it also ships a headless agent for CI/CD-scale scanning and a benchmarking harness against corpora like Juice Shop, WebGoat and NodeGoat.

    github.comrepoAdded 22 Sep 2026, published 18 Jul 2026🛡️ Security

  38. Destructive Command Guard (dcg)

    Destructive Command Guard (dcg) is a Rust-based hook that intercepts and blocks catastrophic commands (git reset --hard, rm -rf, DROP TABLE, kubectl delete namespace, terraform destroy, etc.) before AI coding agents like Claude Code, Codex CLI, Gemini CLI, GitHub Copilot CLI, and Cursor can execute them. It uses a modular "pack" system covering 50+ categories (databases, cloud providers, Kubernetes, secrets managers, CI/CD, storage, DNS, payments) plus a three-tier heredoc/inline-script AST scanning pipeline to catch destructive commands hidden inside python -c/bash -c payloads, and a dedicated "careful_company_running_windows" preset that also blocks data-exfiltration channels (webhooks, uploads, tunnels) and attempts to disable security controls. Configurable via TOML with agent-specific trust profiles, allowlists, and fail-closed/fail-open policies for unattended agent sessions.

    github.comrepoPublished and added 15 Jul 2026🛡️ Security

  39. SreeragPramod/securepipe

    SecurePipe is a small demo GitHub repo showing a GitHub Actions CI/CD pipeline for a Python project that runs Flake8, Black, Bandit SAST scanning, and pytest with an 80% coverage gate before code can be merged. Its commit history documents a real vulnerability lifecycle: a hardcoded database password (Bandit rule B105) and a shell-injectable subprocess call (Bandit rule B602) were intentionally introduced, automatically blocked by the Bandit gate, then fixed by moving secrets to environment variables and replacing shell=True with an explicit argument list and host allowlist.

    github.comrepoPublished and added 15 Jul 2026🛡️ Security

  40. deep-scan

    deep-scan is a modular security-scanning monorepo exposing one shared scanner engine (SAST, SCA, secrets, IaC, license, malware, DAST, CI/CD checks) through a CLI, MCP server, REST API/web app, and a continuous-scanning ASPM fleet called kruncher. It adds a deterministic, AI-free code-graph engine for taint and reachability analysis to cut CVE noise to actually-reachable dependencies, an optional local-model AI triage pass, and an agent-driven MCP workflow that scans, confirms reachability, and opens fix-group PR branches with regression tests. Untrusted-repo scanning is hardened with pinned/checksum-verified tools, sandboxed subprocesses, and optional gVisor (runsc) isolation for dependency resolution on Kubernetes.

    github.comrepoAdded 3 Sep 2026, published 14 Jul 2026🛡️ Security

  41. LocxZ/SecureSDLC-Lab

    SecureSDLC-Lab pairs a minimal Node.js/Express/SQLite app with a GitHub Actions pipeline running Gitleaks (secret scanning), Semgrep (SAST), and Trivy (dependency, Docker image, and Kubernetes manifest scanning) plus OWASP ZAP (DAST) on every push and PR. It documents concrete remediations applied during the exercise: bcrypt password hashing, parameterized SQL queries, session-based auth with post-login session regeneration and HttpOnly cookies, RBAC for an admin page, Helmet security headers, env-based secrets, and a hardened Kubernetes deployment (non-root, readOnlyRootFilesystem, dropped capabilities, seccomp, resource limits) alongside a STRIDE threat model.

    github.comrepoPublished and added 14 Jul 2026🛡️ Security

  42. NVIDIA-NeMo/Guardrails

    NeMo Guardrails is NVIDIAs open-source Python toolkit (nemoguardrails) for adding programmable rails between an application and an LLM, covering input, dialog, retrieval, execution, and output stages. It ships built-in defenses against jailbreaks and prompt injection, self-check fact-checking and hallucination detection, sensitive-data masking, integrations with NVIDIA safety models, ActiveFence and PolicyAI moderation, LangChain, and a Colang DSL for defining conversational flow rails, plus a CLI/server and an evaluation tool for vulnerability scanning against sample bots.

    github.comrepoPublished and added 14 Jul 2026🛡️ Security

  43. awesome-ai-security-tools

    An extensive, actively updated awesome-list aggregating public-source, research, and commercial tools for AI security and AI-assisted cybersecurity. It spans LLM-driven finding triage (nuclei-autotriage, SigmaOptimizer), securing AI coding agents and MCP/skill ecosystems (agent-audit, SkillSpector, Ramparts, ToolHive, Pipelock), AI/ML supply-chain and model-artifact scanning (modelscan, Fickling, GuardDog, Adversarial Robustness Toolbox), and autonomous pentest/exploit agents (PentestGPT, PentAGI, Strix, CAI). Each entry includes stars, license notes, and cross-references, making it a practical index for the fast-moving 2026 agentic-AI-security tooling landscape.

    github.comrepoPublished and added 11 Jul 2026🛡️ Security

  44. SyscallX-18113/Apkx-Hunter

    APKX-Hunter is an open-source Android static analysis framework written in C, built for reverse engineering, malware analysis, OWASP MASVS compliance scanning, and bug bounty/pentesting work. It decompiles APK/APKM/APKS/XAPK/ZIP packages via JADX or APKTool, extracts hardcoded secrets, endpoints, permissions, exported components, and native libraries, and scores detected secrets with a lightweight offline C-based ML classifier (166 MASVS detection patterns across 15 categories). It was showcased at Black Hat Europe Arsenal and tested against the OWASP UnCrackable Level 4 app.

    github.comrepoAdded 30 Sep 2026, published 11 Jul 2026🛡️ Security

  45. apisec-inc/AI-Surface

    ai-surface is a local/offline static analysis CLI (apisec-inc) that scans a codebase for AI attack surface — LLM SDK calls, agent frameworks (LangChain, AWS Strands), MCP servers, RAG/vector stores, model gateways, and provider keys — and flags risk indicators such as financial-action tools with no human approval or unverified MCP servers. It generates an AI-BOM (CycloneDX), SARIF for GitHub code scanning, and maps findings to OWASP LLM Top 10, EU AI Act, NIST AI RMF, and ISO/IEC 42001, with a baseline+fail-on-severity workflow for gating new risk in PRs without blocking on pre-existing debt.

    github.comrepoPublished and added 11 Jul 2026🛡️ Security

  46. VICE

    VICE is an open-source (MIT) Node.js security auditing CLI with two modes: a remote black-box scan that crawls a target with a headless browser across 15-16 security modules (headers, TLS, Supabase access controls, subdomains, storage buckets, WebSockets), and a local white-box audit that scans source code for secrets, .env exposure, npm vulnerabilities, missing Supabase RLS policies, SQL injection and XSS. It ships as a GitHub Action that posts PR comments with a security score, uploads SARIF findings to GitHub Code Scanning, gates merges on a minimum score, and maintains a live README badge. Version 3.4.0 adds an AI/RAG security module for testing chat/agent API endpoints for access control, prompt injection, retrieval isolation, and tool-security issues.

    github.comrepoPublished and added 14 Jun 2026🛡️ Security

  47. Defending Code Reference Harness

    A reference implementation from Anthropic showing how to build a Claude-powered vulnerability discovery and remediation pipeline: interactive skills (/threat-model, /vuln-scan, /triage, /patch, /customize) for static scoping, scanning, triage and patch generation, plus an autonomous seven-stage recon-find-verify-dedupe-report-patch harness that builds targets with Docker/ASAN and runs each agent in a gVisor sandbox with restricted egress. It also ships a detection-and-response track (/dnr-hunt, /dnr-respond) for hunting an attacker already present in logs, scoping blast radius, and proposing a response, demoed against a planted attack campaign in synthetic logs.

    github.comrepoAdded 3 Sep 2026, published 5 Jun 2026🛡️ Security

  48. CVE Lite CLI

    CVE Lite CLI is an OWASP Lab Project CLI that scans npm, pnpm, Yarn, and Bun lockfiles against OSV and the npm advisory API and outputs copy-and-run fix commands instead of raw CVE lists, with parent-aware guidance for transitive dependencies. Beyond core CVE scanning it audits override/resolution hygiene, flags maintenance risk (deprecated direct deps and version drag blocking fixes), warns when a suggested fix falls inside a package manager's release-cooldown window (referencing the chalk/debug npm compromise), and emits SARIF, SPDX/CycloneDX SBOMs, and EPSS-based priority tiers, plus a GitHub Action that opens batched fix PRs.

    github.comrepoPublished and added 31 May 2026🛡️ Security

  49. affaan-m/agentshield

    AgentShield is a CLI/GitHub Action security auditor that scans a Claude Code .claude/ directory for hardcoded secrets, overly permissive Bash/tool allow rules, hook injection, risky MCP server configs, and agent prompt-injection surfaces, producing an A–F graded report with 268 rules across 15 modules. It adds runtime-confidence classification (active-runtime vs. template/docs/plugin-cache) to reduce false positives, a three-agent Claude Opus red-team/blue-team/auditor pipeline for adversarial analysis, MCP supply-chain provenance checks, SOC2/PCI/ISO compliance control mapping, SARIF output for GitHub code scanning, and tamper-evident evidence packs for CI/audit handoff.

    github.comrepoAdded 30 May 2026🛡️ Security

  50. nikaiw/VMkatz

    VMkatz is a static Rust binary that reimplements mimikatz's credential-extraction logic against offline VM artifacts — .vmsn snapshots, .vmdk/.qcow2 disks, or raw registry hives — instead of live LSASS. It supports all nine mimikatz SSP credential providers plus SAM/LSA/DCC2 dumping, DPAPI master-key extraction in hashcat format, a native ESE parser for NTDS.dit, Kerberos ticket export (kirbi/ccache), and BitLocker FVEK recovery/decryption via memory pool-tag scanning. It's designed to run directly on ESXi/Proxmox hosts or NAS storage (with a Python loader to bypass ESXi's execInstalledOnly VIB protection), letting operators pull credentials in place rather than exfiltrating hundreds of GB of disk images.

    github.comrepoPublished and added 22 May 2026🛡️ Security

  51. musana/CF-Hero

    CF-Hero is a Go-based recon tool that uncovers the real origin IP of Cloudflare-protected web applications by correlating current/historical DNS records (A, TXT/SPF), OSINT search engines (Shodan, Censys, ZoomEye), SecurityTrails historical DNS, and sub/related-domain host-header comparison. It validates candidate IPs by connecting directly over HTTP(S) and comparing HTML titles against the target, and supports custom JA3 fingerprints, proxies, and concurrent scanning to reduce false positives.

    github.comrepoPublished and added 21 May 2026🛡️ Security

  52. Open ASM Platform

    Open ASM (OASM) is an open-source, self-hostable Attack Surface Management platform that continuously discovers internet-facing assets (IPs, ports, services, technologies), runs distributed vulnerability/misconfiguration scans via pluggable connector containers wrapping tools like nuclei, subfinder, httpx, naabu, and dnsx, and exposes an MCP server so AI assistants (OpenAI, Anthropic, Google models) can query and analyze the collected asset inventory in natural language. Scanning capability is decoupled into a companion oasm-connectors repo whose manifest lets Core API resolve and dispatch versioned Docker connector images to auto-scaling workers without requiring a platform release.

    github.comrepoAdded 3 Sep 2026, published 17 May 2026🛡️ Security

  53. FoxGuard

    FoxGuard is a fast local/CI security scanner offering 200+ built-in rules across 12 languages, cross-file taint tracking for 14 languages, secrets scanning, OSV-backed dependency (SCA) scanning, and a post-quantum crypto (PQC) audit that flags quantum-vulnerable primitives (RSA, ECDSA/DSA, ECDH/DH) against CNSA 2.0 deadlines while also inventorying already-adopted PQC algorithms (ML-KEM, ML-DSA, SLH-DSA, FN-DSA, HQC). It ships a Semgrep/OpenGrep-compatible YAML rule bridge covering ~98% of the public Semgrep registry, outputs to SARIF/CycloneDX 1.6 CBOM/Semgrep-JSON, and integrates via GitHub Action, pre-commit, VS Code, Claude Code plugin, and MCP server, plus an interactive TUI for reviewing findings and baselines. It's part of the "0sec" open cybersecurity harness project.

    github.comrepoAdded 3 Sep 2026, published 16 May 2026🛡️ Security

  54. DeepSec

    deepsec is an open-source, agent-powered vulnerability scanner from Vercel Labs designed for on-demand AI review of large existing codebases, using maximum-thinking-level LLMs (routed via Vercel AI Gateway or a bring-your-own OpenAI/Anthropic key) to surface long-lurking, hard-to-find bugs. It fans work across worker machines or Vercel Sandbox microVMs for parallel scanning, supports resumable/interruptible runs with cost and time caps, and exports findings as reports; its docs explicitly discuss the prompt-injection risk of running an agent with shell access over untrusted vendored code.

    github.comrepoAdded 3 Sep 2026, published 13 May 2026🛡️ Security

  55. knostic/OpenAnt

    OpenAnt is Knostic's open-source Apache 2 licensed LLM-based vulnerability discovery tool that runs source code through a two-stage pipeline, an agentic detection phase followed by an attack and verification phase, to filter out false positives and surface exploit-verified findings. It is a Go CLI with a Python analysis backend supporting Go, Python, and several beta languages including JavaScript, C, PHP, Ruby, Zig, Swift, and Rust, with pluggable LLM providers such as Anthropic, OpenAI, Google, Ollama, OpenRouter, and Bedrock, plus diff and PR scoped scanning for CI and a local web UI.

    github.comrepoPublished and added 12 May 2026🛡️ Security

  56. Samsar4/Ethical-Hacking-Labs

    Ethical-Hacking-Labs is a free, practical tutorial/lab collection aligned with CEH study material, walking learners from foundational networking, Linux, and virtualization through footprinting, scanning, enumeration, vulnerability analysis, system hacking, malware, sniffing, social engineering, DoS, and session hijacking, plus a bonus forensics module. It targets complete beginners and requires only a lab VM setup (8GB+ RAM, 80GB disk, virtualization support) to follow along hands-on rather than just reading theory.

    github.comrepoPublished and added 8 May 2026🛡️ Security