CVE-2026-34165

unknown

Published 2026-03-30 · Modified 2026-04-08

CVSS v3

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CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

CVSS v2

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VIR risk

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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.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-34165

OS impact

OS	Version	Status	Fixed in
debian	bookworm	affected
debian	forky	fixed	`5.17.1-1`
debian	sid	fixed	`5.17.1-1`
debian	trixie	affected

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/go-git/go-git/v5	`>=5.0.0,<5.17.1`	`5.17.1`
Go	github.com/go-git/go-git
Go	github.com/go-git/go-git/v4

References

Verify integrity in audit chain (admin only). AS-IS.