{"id":"CVE-2026-107381","published":"2026-10-14T15:17:06.327","lastModified":"2026-10-16T16:00:33.533","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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwes":["CWE-178","CWE-400"],"vendors":[],"products":[],"references":[{"url":"https://github.com/darylldoyle/svg-sanitizer/commit/2dff6628314de8519155b7feb218bbe132785757","tags":[]},{"url":"https://github.com/darylldoyle/svg-sanitizer/releases/tag/1.0.0","tags":[]},{"url":"https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-m9xh-6747-9r6f","tags":[]}],"exploitRefs":[{"url":"https://github.com/darylldoyle/svg-sanitizer/commit/2dff6628314de8519155b7feb218bbe132785757","tags":[]},{"url":"https://github.com/darylldoyle/svg-sanitizer/releases/tag/1.0.0","tags":[]},{"url":"https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-m9xh-6747-9r6f","tags":[]}],"hasPoc":true,"ai":null}