Is CVE-2026-3136 actively exploited?

No active exploitation of CVE-2026-3136 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3136 be exploited remotely?

Yes. CVE-2026-3136 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-3136?

CVE-2026-3136 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-3136

CWE-863Published: March 3, 2026· Updated: Mar 5, 2026

9.8

CVSS v3.1

EPSS:0.29%probability of exploitation in 30 daysPercentile:51.7th

Official 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.

NVD Source

Technical Analysis

CVE-2026-3136 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.