Mitigation Bypass Vulnerability in Firefox Enterprise Policies by Mozilla

CVE-2026-109766

What is CVE-2026-109766?

A mitigation bypass vulnerability exists within the Enterprise Policies component of Firefox. This issue could allow unauthorized access to unintended functionalities, potentially compromising the integrity of the security policies in place. Mozilla has addressed this issue in Firefox version 158 and Firefox ESR version 153.5, emphasizing the importance of keeping browsers updated for optimal protection against such vulnerabilities.

References