{"id":"CVE-2026-107381","summary":"svg-sanitizer: Mixed-case xlink:HrEf skips the `\u003cuse\u003e` nesting-DoS check in Resolver::processReferences","details":"svg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, Resolver::processReferences() in src/ElementReference/Resolver.php builds the SVG \u003cuse\u003e reference graph with a case-sensitive href attribute predicate before cleanHrefAttributes() normalizes mixed-case names. An attacker can provide xlink:HrEf on nested \u003cuse\u003e 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.","aliases":["GHSA-m9xh-6747-9r6f"],"modified":"2026-10-15T02:47:24.731065167Z","published":"2026-10-14T14:53:40.415Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107381.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-178","CWE-400"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107381.json"},{"type":"FIX","url":"https://github.com/darylldoyle/svg-sanitizer/commit/2dff6628314de8519155b7feb218bbe132785757"},{"type":"WEB","url":"https://github.com/darylldoyle/svg-sanitizer/releases/tag/1.0.0"},{"type":"ADVISORY","url":"https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-m9xh-6747-9r6f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107381"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/darylldoyle/svg-sanitizer","events":[{"introduced":"0"},{"fixed":"f3300fcd1bbf67d205b52217c75d0f7d6a8c47ff"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.0.0"}],"source":"AFFECTED_FIELD"}}],"versions":["0.22.0","0.21.0","0.20.0","0.19.0","0.18.0","0.17.0","0.16.0","0.15.4","0.15.3","0.15.2","0.15.1","0.15.0","0.14.1","0.14.0","0.13.3","0.13.2","0.10.0","0.9.2","0.9.1","0.9.0","0.8.2","0.8.1","0.8.0","0.7.2","0.7.1","0.7.0","0.6.0","0.5.3.1","0.5.3","0.5.2","0.5.1","0.5.0","0.4.1","0.4.0","0.3.0","0.2.1","0.2.0","0.1.6","0.1.5","0.1.4","0.1.3","0.1.2","0.1.1","0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107381.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}