CVE-2026-109348CWE-407

CVE-2026-109348

Medium · published October 12, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
15.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CVSS v4.0
5.3 · 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
EPSS
0.00249 · 15.3th percentile
Weakness
CWE-407 · Inefficient Algorithmic Complexity
Published
2026-10-12T21:17Z
References (3)
https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-pmpw-wwcm-r8rc · [email protected]https://www.vulncheck.com/advisories/gitoxide-gix-mailmap-before-0.35.0-cpu-denial-of-service-via-mailmap-parsing · [email protected]https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-pmpw-wwcm-r8rc · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 16:05Z
    Gitoxide gix-mailmap before 0.35.0 CPU Denial of Service via .mailmap Parsing
    cvelistv5
  • 12 OCT 16:05Z
    Gitoxide gix-mailmap before 0.35.0 CPU Denial of Service via .mailmap Parsing
    cvelistv5