CVE-2026-92066 Sandbox escape in the Profile Backup component

Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 156 and Thunderbird 156...

CVE-2026-92065 Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component

Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3...

CVE-2026-92034 Site isolation issue in the Graphics component

Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156...

PT-2026-91972

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 156 Thunderbird versions prior to 156 Description Incorrect boundary conditions exist within the Networking: HTTP component. Recommendations Update Firefox to version 156. Update Thunderbird to version 156...

PT-2026-91970

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 156 Thunderbird versions prior to 156 Description A site isolation issue exists within the Graphics component. Site isolation is a security mechanism that ensures web pages from different sites are processed in separa...

PT-2026-92002

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 156 Thunderbird versions prior to 156 Description A sandbox escape exists in the Profile Backup component. A sandbox is a security mechanism for separating running programs, ensuring that code executes in a restricted...