by Kastro
Paper/Archive/CVE-2026-3136

CVE-2026-3136

Google Cloud Cloud Build — Google Cloud Build Comment Control Bypass

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
36
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 33.2.332 × 206.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Cloud Build< 1/26/20261/26/2026CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GoogleCloud (CNA)8.6CVSS: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
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refdocs.cloud.google.com/build/docs/release-notes#March_03_2026