CVE-2026-25934
go-git improperly verifies data integrity values for .idx and .pack files
- State
- Published
- Severity
- 4.3 Medium
- Published
- Feb 9, 2026
- Updated
- Feb 11, 2026
- Reserved
- Feb 9, 2026
Description
go-git is a highly extensible git implementation library written in pure Go. Prior to 5.16.5, a vulnerability was discovered in go-git whereby data integrity values for .pack and .idx files were not properly verified. This resulted in go-git potentially consuming corrupted files, which would likely result in unexpected errors such as object not found. For context, clients fetch packfiles from upstream Git servers. Those files contain a checksum of their contents, so that clients can perform integrity checks before consuming it. The pack indexes (.idx) are generated locally by go-git, or the git cli, when new .pack files are received and processed. The integrity checks for both files were not being verified correctly. This vulnerability is fixed in 5.16.5.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N | GitHub_M |
Weaknesses
- CWE-354 Improper Validation of Integrity Check Value
Affected Products
| Product | Versions |
|---|---|
go-gitgo-git |
|
References
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