CVE-2026-65903

A flaw was found in DOMPurify. A logic error in the ADD_TAGS function allows an attacker to bypass security restrictions. By crafting specific input, an attacker can cause tags that should be removed to remain in the sanitized output. This could lead to the injection of malicious content, potentially compromising the integrity of web pages.

This Moderate flaw in DOMPurify allows an attacker to bypass content sanitization by crafting specific input, leading to the injection of malicious content. Exploitation requires user interaction, as an attacker must trick a user into processing the specially crafted input.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.