Mozilla · Thunderbird · CVE-2026-8970
**Name of the Vulnerable Software and Affected Versions**
Firefox versions prior to 151
Firefox ESR versions prior to 140.11
Thunderbird versions prior to 151
Thunderbird versions prior to 140.11
**Description**
A privilege escalation issue exists within the Security component.
**Recommendations**
Update to version 151
Update to version 140.11
Update to version 151
Update to version 140.11