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Node2Shell is Datadog Security Labs' analysis of CVE-2026-111497, an out-of-bounds write in the Google Brotli 1.2.0 decoder, fixed in Node.js 22.23.4, 24.22.1 and 26.12.1 on 21 October 2026. It explains the unchecked return value in DecodeBlockTypeAndLength(), the read and write primitives, and why code execution is still engineering effort. It lists inbound and outbound exposure paths, behavioral detections and what WAFs miss.
BrotliNode.jsBun+3
CVE-2026-111497Node2ShellCISA KEV+3
AppSec, Blue Team & Detection, Offensive Security· 2026-10-29T00:00:00+00:00
Code security for new coders is a Datadog Security Labs primer for vibe coders on first-party versus third-party code, hardcoded secrets and software supply chain risk (vulnerable and malicious dependencies). It lists security questions to put to a coding agent before and after code is written. It also defines SCA, SAST, IAST, DAST, IaC scanning and secret scanning, and cites the PHP2Shell vulnerabilities.
LiteLLM version 1.107.0 was published to PyPI and official Docker images on 21 October 2026 and stayed live for about two hours. Attackers used stolen GitHub CLI OAuth tokens from three engineers to run the release pipeline against a lookalike fork, Berri-AI/litellm. The payload (cook.pth, cook.py, sitecustomize.py) steals cloud, developer, AI-tool and browser credentials, and includes a polling RAT. The post lists removal and rotation steps.
PHP2Shell is Datadog Security Labs' analysis of two critical PHP RCE flaws, CVE-2026-109618 and CVE-2026-109619 (CVSS v4.0 9.2), disclosed 21 October 2026. It walks through a reproduced exploit on PHP 8.5.11 (heap grooming, a fake array, and a destructor calling system()) and the stale-state use-after-free. It lists fixed versions (8.2.35, 8.3.36, 8.4.27, 8.5.12), partial mitigations, and detection signals across requests, error logs and shell child processes.
PHPApacheCVSS+1
CVE-2026-109618CVE-2026-109619PHP2Shell+5
AppSec, Blue Team & Detection, Offensive Security· 2026-10-21T00:00:00+00:00
Second post in a Datadog Security Labs series testing whether Project CodeGuard (v1.4.0) security rules improve code written by coding agents. Sonnet 5 (Claude Code), Composer 2.5 (Cursor) and GPT 5.5 (Codex) each built the same document portal, and the output was audited with Datadog Code Security and a Sonnet 5 code review. Only GPT 5.5 closed the cross-user IDOR; Sonnet 5 and Composer 2.5 stayed largely unchanged, including hardcoded JWT secret fallbacks and incomplete revocation.
Datadog Security Labs tests TypeSafe AI's Jev decision model as a prompt-injection detector and as the judge behind LangChain's tool-risk gating. On four public datasets Jev had 99.66% precision and 82.90% recall. A prepended "counterfeit policy" that redefines the attack categories cut recall by over 79 points. In a LangChain scenario, a user-editable profile field lowered the mean is_risky score from 0.893 to 0.290, below the 0.5 block threshold. Plain prompt injection did not move the score.
Datadog Security Labs describes how attackers test stolen AWS credentials for Amazon Bedrock access. It analyses the KMON_NOC harvesting platform's frontend code and two Python checkers from VirusTotal that chain GetCallerIdentity, ListFoundationModels, ListInferenceProfiles and a 4-token Converse "ping", with optional billing:GetCredits. Datadog saw 12 organizations with similar behavior in 30 days and lists detection advice and IOCs.
AWS BedrockAWSAWS IAM+3
KMON_NOCLLMjackingcredential validation+8
Cloud & Infra, Threat Intel, Blue Team & Detection· 2026-10-06T00:00:00+00:00
Datadog Security Labs analysis of Kubernetes RBAC bindings to the built-in principals system:anonymous, system:unauthenticated and system:authenticated across 65,000+ clusters from nearly 10,000 organizations. After excluding default and podsecuritypolicy bindings, about 44,000 remained, and over 3,500 granted dangerous permissions, including namespace-scoped ones. It also covers anonymous-auth defaults in AKS, EKS and GKE, and the GKE system:authenticated behavior.
GHSA-632h-h47v-g4x4 is an RCE in OpenCode's /global/upgrade endpoint, fixed in 1.18.22. The target value reached `npm install -g opencode-ai@TARGET`, so an attacker could supply a malicious tarball URL with a preinstall script. A text/plain HTML form bypassed CORS through top-level navigation because the handler parsed JSON without checking Content-Type. Affects 1.14.30 to 1.18.21 installed via npm, pnpm or Bun.
OpenCodenpmpnpm+2
GHSA-632h-h47v-g4x4AnomalyDatadog Security Labs+4
AppSec, AI Security, Offensive Security· 2026-09-24T00:00:00+00:00
Datadog Security Research analyses two vibe-coded credential harvesting platforms, Loot and UltraVault, monitored since July 2026. Loot catalogs plaintext secrets, including 1,778 AI keys (196 live). UltraVault adds credential validation, exploit chains, a 14-bug LPE matrix and AWS key-pair correlation. The same host probed Amazon Bedrock with GetCallerIdentity, ListFoundationModels and InvokeModel, using kali-cloud Boto3 and Python-urllib user agents.
AWS BedrockAWSWordPress+3
CVE-2025-55182CVE-2026-63030CVE-2026-60137+16
Threat Intel, Cloud & Infra, AI Security· 2026-09-18T00:00:00+00:00
Datadog Security Research describes a password spraying campaign against AWS root user accounts at more than 150 organizations, running 24 July to 23 August 2026. Attempts came through proxies using two fixed Chrome/Edge and Firefox user agents, with a median of two attempts per organization. No successful logins were seen. The post gives a CloudTrail ConsoleLogin query, a sample failed event, and root user hardening advice (SCPs, centralized root access, AssumeRoot, alerting).
AWSAWS IAMAWS CloudTrail+1
password sprayingConsoleLoginAssumeRoot+1
Threat Intel, Cloud & Infra, Blue Team & Detection· 2026-08-31T00:00:00+00:00
N4D Mesh Controller is a Linux malware campaign that abuses exposed MCP servers (tools/list, then tools/call on execute_command) and many other services. Datadog executed a UPX-packed, garble-obfuscated Go agent (33.8-go-titan) fetched from 209.99.186.235 in isolated microVMs and an offline replay lab. The post lists persistence paths, controller API paths, an SSH key, YARA and VirusTotal Livehunt rules, and response guidance.
Model Context ProtocolLinuxGo+3
CVE-2026-26220CVE-2023-48022CVE-2026-39987+12
Malware & RE, Threat Intel, Blue Team & Detection, AI Security· 2026-08-20T00:00:00+00:00
Datadog Security Labs tests Sonnet 5, Composer 2.5 and GPT 5.5 on one prompt (a JavaScript document portal with JWT, PostgreSQL, file upload), in default and plan mode, six apps in all. Datadog Code Security and a Claude code review found IDOR in every build. The worst finding was a hardcoded JWT secret fallback in Composer 2.5 plan mode. The author finds no meaningful link between plan mode and more secure code.
ChainDrop is an npm worm that compromised hundreds of packages on 4 August 2026, some with over 150 million weekly downloads, starting from a malicious commit (174f6a5) in the keyv repository. Datadog dissects the Bun-based loader, the obfuscated second stage, credential theft (files, GitHub Actions runner memory, AWS, Kubernetes, Vault), Ethereum smart-contract C2 discovery, AES/RSA exfiltration, an eval channel, and propagation via stolen npm tokens, GitHub branches and Sigstore provenance. IOCs and a list of affected packages are included.
npmBunGitHub+3
ChainDropShai-Huludkeyv+7
Supply Chain, Malware & RE, Threat Intel· 2026-08-04T00:00:00+00:00
Datadog Security Labs shows two ways a trusted repository can run code before the first prompt in coding agents. In Codex, a project-scoped stdio MCP server in .codex/config.toml starts an attacker process. In Claude Code, a PATH override in .claude/settings.json makes startup Git probes run a repository git wrapper. Neither needs hooks, a model response or command approval. The post gives an rg search and endpoint monitoring advice.
Claude CodeCodexModel Context Protocol+2
Contagious InterviewMAL-2026-3648PATH hijacking+6
AI Security, Supply Chain, Blue Team & Detection· 2026-08-03T00:00:00+00:00
securitylabs.datadoghq.comwriteup
