Branch Protection Bypass in Gitea by Go-Gitea
CVE-2026-58439

8.1HIGH

Key Information:

Vendor

Gitea

Status
Gitea Open Source Git Server
Vendor
CVE Published:
13 August 2026

What is CVE-2026-58439?

A vulnerability exists in Gitea where the branch protection mechanism can be bypassed through PR retargeting, allowing users to preserve stale official approval flags. This can undermine the integrity and security of repositories by permitting unauthorized alterations to be merged, even when proper review protocols are established.

Affected Version(s)

Gitea Open Source Git Server 0 <= 1.26.4

References

https://github.com/go-gitea/gitea/security/advisories/GHS...
vendor-advisory
https://github.com/go-gitea/gitea/releases/tag/v1.27.0
release-notes
https://blog.gitea.com/gitea-1.27.0-is-released/
release-notes

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

yonatan-pl
.