CVE-2026-109348

Medium

Description

Gitoxide gix-mailmap before 0.35.0 contains a denial of service vulnerability that allows attackers to exhaust CPU through quadratic-time parsing in Snapshot::from_bytes. Attackers can commit a crafted .mailmap with descending-ordered entries forcing repeated front inserts, blocking workers running log, blame, or shortlog for minutes.

SeverityMedium

CVSS4.3

Exploit probability—

ProductGitoxidelabs Gix-mailmap

PublishedOct 12, 2026

First seenOct 12, 2026

Weakness typeCWE-407CWE-407

How to fix

Update

GitoxideLabs gix-mailmap0.35.0 or later

Vendor advisories

github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-pmpw-wwcm-r8rc

Affected products

Product	Affected versions	Fixed in
GitoxideLabs gix-mailmap	v < 0.35.0	0.35.0

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