Improper Authorization Vulnerability in Google Cloud Build by Google
CVE-2026-3136

8.6HIGH

Key Information:

Vendor

Google Cloud

Status
Cloud Build
Vendor
CVE Published:
3 March 2026

What is CVE-2026-3136?

An improper authorization vulnerability exists in Google Cloud Build that could allow a remote attacker to execute arbitrary code within the build environment. This issue was identified in the GitHub Trigger Comment Control and was resolved on January 26, 2026. Users are not required to take any action as the vulnerability has already been patched.

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Deploy the Patch

Affected Version(s)

Cloud Build 0 < 1/26/2026

References

https://docs.cloud.google.com/build/docs/release-notes#Ma...

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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