CVE-2026-65901
Description
A flaw was found in DOMPurify. This cross-site scripting (XSS) vulnerability exists in IN_PLACE mode, where the software trusts attacker-controlled nodeName on live non-form nodes. A remote attacker can supply hostile live Document Object Model (DOM) objects with script children. These scripts can execute when the sanitized tree is inserted into a live document, potentially leading to information disclosure or arbitrary code execution.
Statement
This cross-site scripting (XSS) vulnerability in DOMPurify arises when the library is used with IN_PLACE: true on attacker-supplied live DOM nodes. An attacker can manipulate a script child node's nodeName to bypass sanitization, leading to arbitrary script execution when the sanitized tree is inserted into a live document. This impacts Red Hat products that process untrusted live DOM content using DOMPurify in this specific configuration.
Mitigation
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.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.1 | N/A | 6.1 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | Required |
| Scope | Changed | N/A | Changed |
| Confidentiality | Low | N/A | Low |
| Integrity Impact | Low | N/A | Low |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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