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orca.securityadvisory

Orca Security: Critical Ubuntu Pro Client Vulnerability Enables Root Code Execution Across Cloud Workloads

Orca Security discloses CVE-2026-11386, a critical vulnerability in the Ubuntu Pro Client that reportedly allows root code execution on affected cloud instances. The fetched page content was empty, so this assessment is based on the title/URL alone; specifics on the vulnerable component, attack vector, and exploitation path are not confirmed here.

TL;DR Orca Security reports CVE-2026-11386, a critical Ubuntu Pro Client flaw enabling root code execution on cloud instances (page content unavailable to verify details).
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CVEs named here

  • CVE-2026-11386
  • CVE-2026-9494
  • CVE-2026-12391

Technologies named here

Techniques named here

  • Unvalidated package installation as root
  • Spoofed/tampered contract server response

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