CVE-2026-3136 HIGH

CVE-2026-3136: Google Cloud Build Comment Control Bypass

Vendor Google Cloud
Product Cloud Build
Weakness CWE-863 · Incorrect authorization
Published March 3, 2026
Last update March 4, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Clear

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 3, 2026 CVE published
March 4, 2026 Record updated