CVE-2026-34165
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)…
Does this matter?
Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own.
Description
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 3.1
- 5.0 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 0.15% probability · 4th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-191, CWE-770
- Affected
- go-git project/go-git
- Source
- security-advisories@github.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.