CVE-2026-121444

HighCVSS 7.5/10Last modified Nov 3, 2026

Description

svg-sanitizer from 0.11.0 before 1.1.0 contains an algorithmic complexity denial of service vulnerability in hasInfiniteLoop() and countUse() of the use reference-graph analysis. Attackers can upload a small layered SVG with 15 levels of fanned-out use elements, forcing exponential path enumeration that pins PHP workers for hours.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

Vendor	Product	Versions
darylldoyle	svg-sanitizer	>= 0.11.0, < 1.1.0

References

Timeline

Published: Nov 3, 2026
Last modified: Nov 3, 2026
NVD status: Deferred

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