{"id":"CVE-2026-65913","title":"DOMPurify before 3.3.2 contains a prototype pollution vulnerability in USE_PROFILES mode that allows attackers to bypass attribute filtering by polluting Array.prototype properties","summary":"DOMPurify before 3.3.2 contains a prototype pollution vulnerability in USE_PROFILES mode that allows attackers to bypass attribute filtering by polluting Array.prototype properties. Attackers can set Array.prototype properties like oncli…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-1321","CWE-79"],"vendor":"cure53","product":"dompurify","affected":["dompurify < 3.3.2"],"patched":["dompurify 3.3.2"],"published":"2026-07-23","updated":"2026-10-08","sourceUpdated":"2026-10-08T16:17:30.030","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-65913","references":[{"url":"https://github.com/cure53/DOMPurify/security/advisories/GHSA-cj63-jhhr-wcxv","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/dompurify-before-prototype-pollution-via-use-profiles","label":"disclosure@vulncheck.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-65913.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-65913"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2506429"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-65913"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65913"},{"url":"https://access.redhat.com/errata/RHSA-2026:58500"},{"url":"https://access.redhat.com/errata/RHSA-2026:54517"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-07-23T13:38:17.202405Z"},"epss":0.00318,"epssPercentile":0.2454,"ingestedAt":"2026-10-08T16:52:14.707Z","slug":"CVE-2026-65913","body":"## Overview\n\nDOMPurify before 3.3.2 contains a prototype pollution vulnerability in USE_PROFILES mode that allows attackers to bypass attribute filtering by polluting Array.prototype properties. Attackers can set Array.prototype properties like onclick to true, causing DOMPurify to accept event handlers as allowlisted attributes and resulting in DOM-based XSS when sanitized markup is rendered.\n\n## Affected\n\n- `dompurify < 3.3.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `dompurify 3.3.2`\n\n## Vendor advisories\n\n- **RHSA-2026:58500** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-08-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:58500)\n- **RHSA-2026:54517** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-08-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:54517)\n- **Red Hat VEX** · Moderate · affected: Migration Toolkit for Virtualization, Multicluster Engine for Kubernetes, Node HealthCheck Operator, OpenShift Lightspeed, OpenShift Service Mesh 3, Red Hat 3scale API Management Platform 2, … · no fix planned: Migration Toolkit for Virtualization, Multicluster Engine for Kubernetes, Node HealthCheck Operator, OpenShift Lightspeed, … · updated 2026-10-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-65913.json)","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}