CVE-2026-104626

Description

A user who can open a fork pull request can place workflow content with a shared run-level concurrency group into a Gitea Actions run that is awaiting approval. When a later run in that group cancels the blocked job, the run becomes terminal while still marked as needing approval. If a maintainer later approves the run, Gitea passed the already-cancelled job back through concurrency preparation, set it to waiting, and made it claimable by a matching runner, executing fork-controlled workflow code. Exploitation requires the maintainer's later approval action, Actions to be enabled, and a runner that accepts the repository's jobs.

Traduire en français

Produits concernés

• Gitea
• Gitea gitea

Scores CVSS

Faiblesses (CWE)

• CWE-841

Références

• https://blog.gitea.com/release-of-28.0.0/ Release Notes
• https://github.com/go-gitea/gitea/pull/39399 Patch
• https://github.com/go-gitea/gitea/releases/tag/v28.0.0 Release Notes
• https://github.com/go-gitea/gitea/security/advisories/GHSA-93pj-3x56-5gc2 MitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories