CVE-2026-66010
1 advisory.
npm/dompurify CVE-2026-66010: low, EPSS 0.21%
DOMPurify: `CUSTOM_ELEMENT_HANDLING` bypasses `afterSanitizeElements` for allowed custom elements.
Action: Upgrade dompurify to 3.4.12 or later.
npm i dompurify@3.4.12Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.4.12 | - |
Fixed versions
| 3.4.12 |
Sources
- osv: GHSA-c2j3-45gr-mqc4
- https://github.com/cure53/DOMPurify/security/advisories/GHSA-c2j3-45gr-mqc4
- https://nvd.nist.gov/vuln/detail/CVE-2026-66010
- https://github.com/cure53/DOMPurify/pull/1537
- https://github.com/cure53/DOMPurify/commit/a9ca1e537422319a557a9a2aa61f003b23b4a197
- https://github.com/cure53/DOMPurify
- https://github.com/cure53/DOMPurify/releases/tag/3.4.12
- https://www.vulncheck.com/advisories/dompurify-before-hook-bypass-via-custom-element-handling
CVE-2026-66010 · published · modified · JSON