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.
Exploitability
AV:NAC:LAT:NPR:NUI:AVulnerable System
VC:HVI:HVA:HSubsequent System
SC:LSI:LSA:L8.6/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:ClearAccess Control