CVE-2026-109760
Received Received - Intake

HTTP Mitigation Bypass in Firefox

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Mozilla Corporation

Description
Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.

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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-2026-109760
EUVD
EUVD-2026-98520

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
mozilla firefox to 158 (inc)
mozilla firefox_esr to 153.5 (inc)
mozilla firefox 158
mozilla firefox_esr 153.5

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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 Firefox's Networking: HTTP component. It allows attackers to bypass security measures that were meant to prevent certain types of attacks. The issue was resolved in Firefox version 158 and Firefox ESR version 153.5.

Impact Analysis

If exploited, this vulnerability could allow unauthorized access to sensitive data or enable further attacks on your system. Users of affected Firefox versions should update immediately to mitigate risks.

Mitigation Strategies

Update Firefox to version 158 or later and Firefox ESR to version 153.5 or later to address the mitigation bypass in the Networking: HTTP component.

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