Bug 2461155 (CVE-2026-41239) - CVE-2026-41239 DOMPurify: Vue 2: DOMPurify: Cross-site scripting due to incomplete sanitization of template expressions
Summary: CVE-2026-41239 DOMPurify: Vue 2: DOMPurify: Cross-site scripting due to incom...
Keywords:
Status: NEW
Alias: CVE-2026-41239
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-23 16:14 UTC by OSIDB Bzimport
Modified: 2026-07-02 16:56 UTC (History)
93 users (show)

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Description OSIDB Bzimport 2026-04-23 16:14:39 UTC 
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.
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