CVE-2026-33762
go-git: Missing validation decoding Index v4 files leads to panic
- State
- Published
- Severity
- 2.8 Low
- Published
- Mar 31, 2026
- Updated
- Mar 31, 2026
- Reserved
- Mar 23, 2026
Description
go-git is an extensible git implementation library written in pure Go. Prior to version 5.17.1, go-git’s index decoder for format version 4 fails to validate the path name prefix length before applying it to the previously decoded path name. A maliciously crafted index file can trigger an out-of-bounds slice operation, resulting in a runtime panic during normal index parsing. This issue only affects Git index format version 4. Earlier formats (go-git supports only v2 and v3) are not vulnerable to this issue. This issue has been patched in version 5.17.1.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 2.8 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L | GitHub_M |
Weaknesses
- CWE-129 Improper Validation of Array Index
Affected Products
| Product | Versions |
|---|---|
go-gitgo-git |
|
References
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