Gitea pre-receive hook scanner errors allow branch-protection bypass

CRITICAL 9.8CVE-2026-27780 · GHSA-vhq7-fwwh-7hjf · GO-2026-6346 · Published 03/07/2026 · updated 25/10/2026

Package	Affected versions	Patched versions
code.gitea.io/gitea Go	`< 1.26.0`	`1.26.0`

Description

Gitea versions before 1.26.0 do not fail closed on bufio.Scanner errors while processing pre-receive hook input, allowing oversized input to bypass branch-protection checks.

NVD description

Gitea versions before 1.26.0 do not fail closed on bufio.Scanner errors while processing pre-receive hook input, allowing oversized input to bypass branch-protection checks.

References

nvd.nist.gov/vuln/detail/CVE-2026-27780 · ADVISORY
go-gitea/gitea#36963 · WEB
go-gitea/gitea commit c453d09 · WEB
blog.gitea.com/release-of-1.26.0 · WEB
go-gitea/gitea · PACKAGE
go-gitea/gitea release v1.26.0 · WEB
blog.gitea.com/release-of-1.26.0
GitHub Advisory GHSA-vhq7-fwwh-7hjf · ADVISORY

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