Github CVE-2026-3136
CRITICALCVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
An improper authorization vulnerability in GitHub Trigger Comment Control in Google Cloud Build prior to 2026-1-26 allows a remote attacker to execute arbitrary code in the build environment.
This vulnerability was patched on 26 January 2026, and no customer action is needed.
AnalysisAI
Improper authorization in Google Cloud Build GitHub Trigger allowing unauthenticated build execution. EPSS 0.19%.
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RemediationAI
Within 24 hours: Inventory all Cloud Build instances with GitHub trigger integrations and review recent build logs for suspicious activity. Within 7 days: Implement network segmentation to restrict build environment access, disable GitHub trigger comment control if not operationally critical, and enforce additional authentication for build initiation. …
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External POC / Exploit Code
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