woodpecker-ci woodpecker up to 3.14.x GitLab Forge Driver commit.author.name authentication spoofing

Summaryinfo

A vulnerability, which was classified as critical, was found in woodpecker-ci woodpecker up to 3.14.x. This vulnerability affects unknown code of the component GitLab Forge Driver. Such manipulation of the argument commit.author.name leads to authentication spoofing. This vulnerability is traded as CVE-2026-58370. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in woodpecker-ci woodpecker up to 3.14.x. It has been rated as critical. Affected by this issue is some unknown functionality of the component GitLab Forge Driver. The manipulation of the argument commit.author.name with an unknown input leads to a authentication spoofing vulnerability. Using CWE to declare the problem leads to CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Woodpecker before 3.15.0 matches the ApprovalAllowedUsers bypass list against pipeline.Author. For the GitLab forge driver, pipeline.Author is populated from the git commit author name (commit.author.name) carried in the webhook payload, which is attacker-controlled and not verified by GitLab. A user who can open a merge request from a fork can set the commit author name to match an entry in ApprovalAllowedUsers, causing needsApproval to return false so the pipeline runs without the required approval. This defeats the fork-approval security boundary and allows execution of attacker-controlled pipeline steps on a Woodpecker agent and exfiltration of CI secrets exposed to the run. Other built-in forge drivers (Gitea, Forgejo, GitHub, Bitbucket) derive pipeline.Author from the forge-validated sender/actor identity and are not affected.

The weakness was shared by George Chen. The advisory is available at github.com. This vulnerability is handled as CVE-2026-58370 since 06/30/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 3.15.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 98faae778c953678944996c89ed99307d2f16a3d is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• woodpecker-ci

Name

• woodpecker

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9
• 3.10
• 3.11
• 3.12
• 3.13
• 3.14

License

• open-source

Website

• Product: https://github.com/woodpecker-ci/woodpecker/

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