CVE-2026-92039
Received Received - Intake

DOM Notifications Component Mitigation Bypass in Firefox

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Mozilla Corporation

Description
Mitigation bypass in the DOM: Notifications component. This vulnerability was fixed in Firefox 156 and Firefox ESR 153.3.

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Meta Information

Published
2026-09-15
Last Modified
2026-09-15
Generated
2026-09-15
AI Q&A
2026-09-15
EPSS Evaluated
N/A
NVD
CVE-2026-92039
EUVD
EUVD-2026-78502

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox 156
mozilla firefox_esr 153.3

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 vulnerability is a mitigation bypass in the DOM: Notifications component of Firefox. It was fixed in Firefox version 156 and Firefox ESR version 153.3. The issue allows bypassing security measures in the notification system.

Impact Analysis

The vulnerability could allow attackers to bypass security restrictions in the browser's notification system. This might lead to unauthorized notifications or potential phishing attempts if exploited.

Mitigation Strategies

Update Firefox to version 156 or later and Firefox ESR to version 153.3 or later to address the vulnerability.

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