CVE-2026-109746
Received Received - Intake

DOM Security Component Mitigation Bypass in Firefox

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Mozilla Corporation

Description
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 158.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-13
AI Q&A
2026-10-13
EPSS Evaluated
N/A
NVD
CVE-2026-109746
EUVD
EUVD-2026-98508

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 158

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a mitigation bypass vulnerability in the DOM Security component of Firefox. It allows attackers to bypass security measures designed to protect against DOM-based attacks. The issue was resolved in Firefox version 158.

Impact Analysis

An attacker could exploit this to bypass security controls, potentially leading to unauthorized access to sensitive data or execution of malicious scripts in the context of a user's browser session.

Mitigation Strategies

Update Firefox to version 158 or later to address the DOM Security component vulnerability.

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