{"id":"CVE-2026-117540","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-117540","generatedAt":"2026-10-28T01:01:13.554Z","title":"svg-sanitizer from 0.5.3 before 1.1.0 contains a denial of service vulnerability in Sanitizer::sanitize() that repeatedly rescans the whole input while stripping PHP tags.","description":"svg-sanitizer from 0.5.3 before 1.1.0 contains a denial of service vulnerability in Sanitizer::sanitize() that repeatedly rescans the whole input while stripping PHP tags. Unauthenticated attackers can upload SVGs with many overlapping PHP tag openers and closers, forcing quadratic preg_replace passes that exhaust worker CPU for minutes.","published":"2026-10-27T11:17:35.000Z","lastModified":"2026-10-27T11:17:35.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-407"],"affected":[],"epss":null,"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unscored. Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-27T11:17:35.000Z","detail":{"score":"8.7","severity":"HIGH","publishedAt":"2026-10-27T11:17:34.833Z"},"summary":"New CVE, high severity (CVSS 8.7)."}],"references":[{"url":"https://github.com/darylldoyle/svg-sanitizer/commit/9ba9001493f5da737759303f13bd965ebdaa778c","source":"disclosure@vulncheck.com"},{"url":"https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-2v7c-jx29-jprp","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/svg-sanitizer-before-1.1.0-quadratic-cpu-exhaustion-dos-via-php-tag-stripping-loop","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-117540","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}