CVE-2026-79960: Auth Bypass

Description

When a push was authenticated with a deploy key, Gitea recorded the repository owner as the pusher, so permission checks in the push hook pipeline evaluated the owner instead of the deploy key. A holder of a writable deploy key could create protected tags without being on the tag allow list and change repository visibility through push options, for example making a private repository public. Pull requests created through the AGit flow with a deploy key were also attributed to the owner.

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Weakness Type (CWE)

CWE-863 Incorrect Authorization

References

Other References

https://blog.gitea.com/release-of-28.0.0/ https://github.com/go-gitea/gitea/pull/37306 https://github.com/go-gitea/gitea/releases/tag/v28.0.0 https://github.com/go-gitea/gitea/security/advisories/GHSA-7769-9pr9-m24h

Frequently Asked Questions

What is CVE-2026-79960? +

When a push was authenticated with a deploy key, Gitea recorded the repository owner as the pusher, so permission checks in the push hook pipeline evaluated the owner instead of the deploy key. A holder of a writable deploy key could create protected tags without being on the tag allow list and change repository visibility through push options, for example making a private repository public. Pull requests created through the AGit flow with a deploy key were also attributed to the owner.

How do I check if I'm vulnerable to CVE-2026-79960? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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