CVE-2026-116804

MediumCVSS 6.1/10Last modified Nov 2, 2026

Description

DOMPurify from 3.4.4 before 3.4.17 contains a SAFE_FOR_TEMPLATES bypass that lets attackers preserve template expressions in attached shadow roots when using RETURN_DOM, RETURN_DOM_FRAGMENT, or IN_PLACE modes. Attackers can split expressions across text nodes separated by disallowed elements, which merge after removal and are evaluated by downstream template engines for cross-site scripting.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
cure53DOMPurify>= 3.4.4, < 3.4.17

References

Timeline

Published
Oct 27, 2026
Last modified
Nov 2, 2026
NVD status
Awaiting Analysis

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CVE-2026-116804: Medium severity, CVSS 6.1 | Vulnix