Medium 6.8Published Apr 23, 2026

CVE-2026-41239DOMPurify has a SAFE_FOR_TEMPLATES bypass in RETURN_DOM mode

Updated under an hour ago (Oct 26, 2026, 4:10 PM ET)

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It affects cure53 DOMPurify. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for cure53 DOMPurify

Exploited in the last 30 days

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.

CVSS: 6.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-79, CWE-1289
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Apr 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

cure53 DOMPurify cure53:dompurify (from the name)	from 1.0.10, < 3.4.0	CNA record

References

References

https://github.com/cure53/DOMPurify/security/advisories/GHSA-crv5-9vww-q3g8	x-refsource-confirm
https://github.com/cure53/DOMPurify/releases/tag/3.4.0	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.