CVE-2026-65912
CVE-2026-65912 · DOMPurify before 3.3.2 URI Validation Bypass via ADD_ATTR
This page contains facts from public vulnerability sources. Check the original advisory before updating.
DOMPurify before 3.3.2 contains a URI validation bypass vulnerability when ADD_ATTR is provided as a predicate function via EXTRA_ELEMENT_HANDLING.attributeCheck. Attackers can supply a predicate that accepts specific attribute and tag combinations to bypass URI-safe validation, allowing unsafe protocols like javascript: to survive sanitization and execute as DOM-based XSS when the link is activated.
CVSS 5.1 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Affected products and versions
dompurify
- Versions
- ≥ 0, < 3.3.2: Affected (semver)
- 3.3.2: Not affected (semver)
Update to 3.3.2
node-dompurify Debian:12
- Versions
- 2.4.1+dfsg+~2.4.0-1
- 2.4.1+dfsg+~2.4.0-2
- 2.4.1+dfsg+~2.4.0-2+deb12u1
- 3.0.9+dfsg+~3.0.5-1
- 3.1.6+dfsg+~3.0.5-1
- 3.1.7+dfsg+~3.0.5-1
- 3.1.7+dfsg+~3.0.5-2
- 3.2.5+dfsg-1
- 3.3.2+dfsg-1
- 3.3.3+dfsg-1
- 3.3.3+dfsg-2
- 3.4.1+dfsg-1
- 3.4.12+dfsg-1
- 3.4.13+dfsg-1
- 3.4.13+dfsg-2
- 3.4.16+dfsg-1
- 3.4.2+dfsg-1
- 3.4.5+dfsg-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
node-dompurify Debian:13
- Versions
- 3.1.7+dfsg+~3.0.5-2
- 3.2.5+dfsg-1
- 3.3.2+dfsg-1
- 3.3.3+dfsg-1
- 3.3.3+dfsg-2
- 3.4.1+dfsg-1
- 3.4.12+dfsg-1
- 3.4.13+dfsg-1
- 3.4.13+dfsg-2
- 3.4.16+dfsg-1
- 3.4.2+dfsg-1
- 3.4.5+dfsg-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
node-dompurify Debian:14
- Versions
- 3.1.7+dfsg+~3.0.5-2
- 3.2.5+dfsg-1
- Affected ranges
- ECOSYSTEM: < 3.3.2+dfsg-1
Update to 3.3.2+dfsg-1
dompurify npm
- Affected ranges
- SEMVER: < 3.3.2
Update to 3.3.2
node-dompurify Ubuntu:22.04:LTS
- Versions
- 2.3.0+dfsg-2
- 2.3.3+dfsg-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
node-dompurify Ubuntu:24.04:LTS
- Versions
- 2.4.1+dfsg+~2.4.0-1
- 3.0.9+dfsg+~3.0.5-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published