CVE-2026-27780

critical · 9.8

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.

9.8

CVSS

0.6%

EPSS (exploit prob.)

49th

EPSS percentile

2026-07-03

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-863

References

https://blog.gitea.com/release-of-1.26.0/
https://github.com/go-gitea/gitea/pull/36963
https://github.com/go-gitea/gitea/releases/tag/v1.26.0

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-27780