Mitigation Bypass in Data Loss Prevention for Mozilla Firefox

CVE-2026-74983

What is CVE-2026-74983?

A mitigation bypass has been identified in the Data Loss Prevention component of Mozilla Firefox, which could potentially compromise user data security. This vulnerability has been addressed in recent updates, specifically in Firefox versions 154 and the ESR versions 140.14 and 153.1, ensuring enhanced protection for users against data leaks and unauthorized access.

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