CVE-2026-16382
Received Received - Intake

DOM Service Workers Mitigation Bypass in Firefox

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: Mozilla Corporation

Description
Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153.

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-21
AI Q&A
2026-07-21
EPSS Evaluated
N/A
NVD
CVE-2026-16382
EUVD
EUVD-2026-46219

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox 153

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Exploitability

CWE
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a mitigation bypass in the DOM: Service Workers component of Firefox. It allows attackers to bypass security measures that were meant to protect against certain types of attacks. The issue was resolved in Firefox version 153.

Detection Guidance

Detection requires checking Firefox version. Run 'firefox --version' in terminal. If version is below 153, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow an attacker to bypass security restrictions, potentially leading to unauthorized access to sensitive data or execution of malicious code on your system. Users of affected Firefox versions should update to Firefox 153 or later to mitigate the risk.

Mitigation Strategies

Update Firefox to version 153 or later immediately. Disable Service Workers if updating is not possible by setting 'dom.serviceWorkers.enabled' to false in about:config.

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