CVE-2026-124859

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 160 Firefox ESR versions prior to 115.45 Firefox ESR versions prior to 153.7 Thunderbird versions prior to 160

Description A sandbox escape exists due to incorrect boundary conditions within the Storage: Cache API component. This issue allows for remote exploitation without requiring user authentication.

Recommendations Update Firefox to version 160 or later. Update Firefox ESR to version 115.45 or later. Update Firefox ESR to version 153.7 or later. Update Thunderbird to version 160 or later.