Vulnerability 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.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Related Weaknesses (CWE)
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
FAQ
What is CVE-2026-27780?
CVE-2026-27780 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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.
How severe is CVE-2026-27780?
CVE-2026-27780 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-27780?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.