DOMPurify has a SAFE_FOR_TEMPLATES bypass in RETURN_DOM mode
Summary
DOMPurify has a SAFE_FOR_TEMPLATES bypass in RETURN_DOM mode
Original description
The description as published by the source.
DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Starting in version 1.0.10 and prior to version 3.4.0, SAFE_FOR_TEMPLATES strips {{...}} expressions from untrusted HTML. This works in string mode but not with RETURN_DOM or RETURN_DOM_FRAGMENT, allowing XSS via template-evaluating frameworks like Vue 2. Version 3.4.0 patches the issue.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-41239 node-dompurify
- Ubuntu UBUNTU-CVE-2026-41239 node-dompurify
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- web github.com