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CVE-2026-3136

Google Cloud Build Comment Control Bypass

Published: Mar 3, 2026Updated: Mar 5, 2026 Sources: CVE List NVDCWE-863
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
0.4%
Top 71.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-863

Affected Products

Cloud BuildGoogle Cloud
SaaS
Cloud & SaaS / cloud-platform
cloud buildgoogle
On-prem
Mobile Apps / android-app
google cloudcommercialUSCloud & SaaSaka apigee-x, looker, looker studio
googlecommercialUSMobile Appsaka google inc, google llc

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Mar 3, 2026
Last Updated
Mar 5, 2026

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