CVE WatchOct 18, 2026

CVE-2026-107381

svg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, Resolver::processReferences() in src/ElementReference/Resolver.php builds the SVG

CVSS

6.5

Medium

EPSS

0.4%

p35

KEV

—

Exploit Today

0-100

Published: Oct 14, 2026 · Last modified: Oct 18, 2026 · CWE-178 · CWE-400

EPSS · 30d

0.4%EPSS · 30 days0.4%

2026-10-152026-10-19

Technical description

svg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, Resolver::processReferences() in src/ElementReference/Resolver.php builds the SVG <use> reference graph with a case-sensitive href attribute predicate before cleanHrefAttributes() normalizes mixed-case names. An attacker can provide xlink:HrEf on nested <use> elements so the graph omits those references, after which the sanitizer converts the attribute to canonical xlink:href and returns the live nesting structure without applying the useNestingLimit protection. A consuming application that renders the sanitized SVG can therefore be exposed to the resource exhaustion that control is designed to prevent. This issue is fixed in version 1.0.0.

Official references

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