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

A mitigation bypass vulnerability exists in Firefox's Networking: Cookies component. This security flaw allows attackers to circumvent existing security mitigations related to cookie handling in the browser's networking layer. The vulnerability has been assigned CVE-2026-6768 and affects Firefox versions prior to 150. Mozilla has addressed this issue by releasing Firefox version 150 which contains the necessary security fixes. Users are advised to update to Firefox 150 or later to protect against potential exploitation of this vulnerability.