CVE-2026-70402: Gitea local code execution through writable Git hooks

Severity: medium (CVSS 5.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-14 · updated 2026-10-14
Weakness: CWE-732

Description

Gitea creates server-side Git hook directories and scripts with mode 0777 and relies on the process umask to restrict access. With a permissive umask such as 0000 or 0002, another local user who can reach the repository storage may modify a hook or add an executable to a writable hook directory. A later Git operation can execute that file as the Gitea service account.

Affected products

Gitea Open Source Git Server: through 1.27.2

References

https://blog.gitea.com/release-of-1.27.3/
https://github.com/go-gitea/gitea/pull/39008
https://github.com/go-gitea/gitea/pull/39016
https://github.com/go-gitea/gitea/releases/tag/v1.27.3
https://github.com/go-gitea/gitea/security/advisories/GHSA-pq8x-xpgp-rvmh

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