Vulnerability · Published Jul 3, 2026 · Assigned by Gitea
CVE-2026-27775Gitea pre-receive hook permission cache allows full repository write access
High 8.8
In plain English
A high-severity incorrect authorization in Gitea Open Source Git Server from Gitea. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.9%top 39.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Gitea 1.25.5 caches a branch-specific write-permission result across multiple refs in one pre-receive hook session, allowing a per-branch maintainer-edit grant to be reused for other refs and escalate to full repository write access.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | code.gitea.io/gitea | 1.26.3 | GHSA-649p-mmhf-85c7 |
| Go | code.gitea.io/gitea | 1.26.3 | GO-2026-6043 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Gitea | Gitea Open Source Git Server | 1.25.5 |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory vendor-advisory
- GitHub Pull Request #38151 patch
- Gitea v1.26.3 Release release-notes
- Gitea v1.26.4 Release Blog Post release-notes