CVE-2026-96404

UNKNOWN 0.0

Gitea installer authentication bypass for existing accounts

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

When Gitea's web installer is reachable against a database that already contains users, such as after `INSTALL_LOCK` has been reset to `false`, submitting the install form with an administrator username matching an existing account issued an authenticated session for that account without verifying its password. If the account is an administrator, the session grants full administrative access, including changing the account's password. Databases with a single user also did not require the reinstall confirmation.

Vendor	gitea
Product	gitea
Published	Oct 6, 2026

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Affected Versions

Gitea / Gitea

0 ≤ 1.27.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/go-gitea/gitea/security/advisories/GHSA-9h7g-h754-c8x2 github.com: https://github.com/go-gitea/gitea/pull/39400 blog.gitea.com: https://blog.gitea.com/release-of-28.0.0/ github.com: https://github.com/go-gitea/gitea/releases/tag/v28.0.0

Credits

https://github.com/vuductruong12 https://github.com/lilmingwa13 https://github.com/wxiaoguang