CVE-2026-3136 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact Low

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

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

History

Tue, 03 Mar 2026 17:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 03 Mar 2026 16:30:00 +0000

Type	Values Removed	Values Added
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.
Title		Google Cloud Build Comment Control Bypass
Weaknesses		CWE-863
References		https://docs.cloud.google.com/build/docs/release-notes#March_03_2026
Metrics		cvssV4_0 `{'score': 8.6, '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'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: GoogleCloud

Published: 2026-03-03T16:22:54.502Z

Updated: 2026-03-04T04:55:36.155Z

Reserved: 2026-02-24T17:29:16.705Z

Link: CVE-2026-3136

Vulnrichment

Updated: 2026-03-03T16:38:14.528Z

NVD

Status : Awaiting Analysis

Published: 2026-03-03T17:16:19.160

Modified: 2026-03-03T21:52:29.877

Link: CVE-2026-3136

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-863

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