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

> CVE-2026-3136: Google Cloud Build Comment Control Bypass. CVSS 9.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-3136
Last updated: 2026-06-17T10:43:06Z

- Published: 2026-03-03 16:22 UTC · Updated: 2026-06-17 10:43 UTC · Assigner: GoogleCloud
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 0.37%, 31th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-863

## 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.

## Affected vendors and products

- Google Cloud: Cloud Build

## Tracked companies

- [Google Cloud](https://rewindex.com/company/google-cloud.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-3136)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-3136)
- [https://docs.cloud.google.com/build/docs/release-notes\#March\_03\_2026](https://docs.cloud.google.com/build/docs/release-notes#March_03_2026)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-3136 · Markdown: https://rewindex.com/cve/CVE-2026-3136.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-3136 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:46:24.790Z