Vulnerability · Published Aug 13, 2026 · Assigned by Gitea
CVE-2026-57886Cross-repository issue/comment attachment re-linking can expose private attachment content
Medium 5.9
In plain English
A medium-severity authorization bypass via user-controlled key in Gitea Open Source Git Server from Gitea. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.3%top 75.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Cross-repository issue/comment attachment re-linking can expose private attachment content
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | code.gitea.io/gitea | 1.27.0 | GHSA-6c6r-5xr4-cr5m |
| Go | gitea.dev | 1.27.0 | GO-2026-6035 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Gitea | Gitea Open Source Git Server | 0 – through 1.26.4 |
Weakness: CWE-639, CWE-862 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
References
- GitHub Security Advisory vendor-advisory
- Gitea v1.27.0 Release release-notes
- Gitea v1.27.0 Release Blog Post release-notes