CVE-2026-34165go-git is an extensible git implementation library written in pure Go.
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No exploitation reported and no EPSS estimate yet.
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go-git is an extensible git implementation library written in pure Go. From version 5.0.0 to before version 5.17.1, a vulnerability has been identified in which a maliciously crafted .idx file can cause asymmetric memory consumption, potentially exhausting available memory and resulting in a denial-of-service (DoS) condition. Exploitation requires write access to the local repository's .git directory, it order to create or alter existing .idx files. This issue has been patched in version 5.17.1.
- CVSS
- 5.0 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-191, CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
go-git_project go-git go-git_project:go-git | from 5.0.0 before 5.17.1 | NVD |
References
- https://github.com/go-git/go-git/releases/tag/v5.17.1product, release-notes
- https://github.com/go-git/go-git/security/advisories/GHSA-jhf3-xxhw-2wppvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.