CVE-2026-109348

Gitoxide gix-mailmap before 0.35.0 CPU Denial of Service via .mailmap Parsing

State: Published
Severity: 5.3 Medium
Published: Oct 12, 2026
Updated: Oct 13, 2026
Reserved: Oct 12, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	VulnCheck
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	VulnCheck

Weaknesses

CWE-407 Inefficient Algorithmic Complexity

Affected Products

Product	Versions
gix-mailmapGitoxideLabs	before 0.35.0Affected 0.35.0Not affected

References

GitHub Security Advisory (GHSA-pmpw-wwcm-r8rc)vendor-advisory
VulnCheck Advisory: Gitoxide gix-mailmap before 0.35.0 CPU Denial of Service via .mailmap Parsingthird-party-advisory

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