CVE-2026-71557
go-git: Malicious reference names may modify files outside the reference storage
- State
- Published
- Severity
- 6.3 Medium
- Published
- Aug 7, 2026
- Updated
- Aug 7, 2026
- Reserved
- Aug 6, 2026
Description
go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, reference names are not sanitized before being used to construct on-disk paths under the reference storage directory, so a maliciously crafted reference name (for example containing directory-traversal sequences) can cause go-git to write files outside the intended reference storage directory. Versions 5.19.2 and 6.0.0-alpha.5 fix the issue.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L | GitHub_M |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
go-gitgo-git |
|
References
- https://github.com/go-git/go-git/security/advisories/GHSA-qgq7-7hm3-q39j
- https://github.com/go-git/go-git/pull/2247
- https://github.com/go-git/go-git/pull/2254
- https://github.com/go-git/go-git/commit/4a0e66d555de5f9a30c31e2df64f445f42bd01e7
- https://github.com/go-git/go-git/commit/da9f7d8a0e98b475600177348d6ece384a370f36
- https://github.com/go-git/go-git/releases/tag/v5.19.2
- https://github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5
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