CVE-2026-104626 Gitea fork workflow job revival through later approval

What is CVE-2026-104626?

CVE-2026-104626 is a high-severity vulnerability in Gitea Gitea, published on 6 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-841

Which versions are affected by CVE-2026-104626?

1 open source package ship an affected version, including gitea. It affects 1 product.

Products include Gitea Gitea.

How do I fix CVE-2026-104626?

Upgrade gitea to 28.0.0 or later.

Is CVE-2026-104626 being exploited?

There is no known exploitation of CVE-2026-104626 in the wild and no public exploit code.

Other vulnerabilities in Gitea Gitea

• CVE-2026-60004 Gitea Code Injection Exploited Critical 9.8
• CVE-2026-73278 Gitea WebAuthn bypass during OAuth and OIDC sign-in Critical 9.8
• CVE-2026-94205 Gitea fork workflow approval bypass through maintainer-triggered events Critical 9.8
• CVE-2022-42968 Gitea vulnerable to Argument Injection Critical 9.8
• CVE-2021-45330 Improper Privilege Management in Gitea Critical 9.8

All Gitea Gitea vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-gitea-2026-104626, GHSA-93pj-3x56-5gc2, MINI-fqh2-g984-296r, MINI-j547-fwmp-hjj2.