CVE-2026-6760

Received Received - Intake

Mitigation Bypass in Firefox Networking Cookies Component

Publication date: 2026-04-21

Last updated on: 2026-04-22

Assigner: Mozilla Corporation

Description

Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-04-21

Last Modified

2026-04-22

Generated

2026-07-06

AI Q&A

2026-04-21

EPSS Evaluated

2026-07-05

NVD

CVE-2026-6760

EUVD

EUVD-2026-24101

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 150.0 (exc)
mozilla	thunderbird	to 150.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-288	The product requires authentication, but the product has an alternate path or channel that does not require authentication.

Attack-Flow Graph

Executive Summary

This vulnerability is a mitigation bypass in the Networking: Cookies component of Mozilla Firefox. It means that a security measure designed to protect or restrict cookie handling was circumvented, potentially allowing unintended access or behavior related to cookies. The issue was fixed in Firefox version 150.

Impact Analysis

Bypassing mitigation in the cookie handling component could allow attackers to exploit cookies in ways that were previously prevented. This might lead to unauthorized access to session information, user tracking, or other security issues related to cookie management in Firefox.

Mitigation Strategies

The vulnerability was fixed in Firefox 150. To mitigate this vulnerability, you should update your Firefox browser to version 150 or later.

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