firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code...

firefox: thunderbird: Same-origin policy bypass in the Request Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Same-origin policy bypass in the Request Handling component...

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code...

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code...

firefox: thunderbird: Privilege escalation in the Netmonitor component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the Netmonitor component...

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

firefox: thunderbird: Privilege escalation in the Netmonitor component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the Netmonitor component...

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code...

firefox: thunderbird: Same-origin policy bypass in the Request Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Same-origin policy bypass in the Request Handling component...

firefox: thunderbird: Same-origin policy bypass in the Request Handling component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Same-origin policy bypass in the Request Handling component...

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: JIT miscompilation in the JavaScript Engine: JIT component...

Android XR Bulletin—January 2026Stay organized with collectionsSave and categorize content based on your preferences.

The XR Security Bulletin contains details of security vulnerabilities affecting the XR platform. The full XR update comprises the security patch level of 2026-01-05 or later from the January 2026 Android Security Bulletin in addition to all issues in this bulletin. We encourage all customers to...

PT-2026-27416

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description An undefined behavior exists within the WebRTC: Signaling component. This issue impacts the...

PT-2026-27400

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 149 Firefox ESR versions prior to 140.9 Thunderbird versions prior to 149 Thunderbird versions prior to 140.9 Description A use-after-free issue exists in the JavaScript Engine component. This condition occurs when...

PT-2026-21726

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions 115.32 through 115.32 Firefox ESR versions 140.7 through 140.7 Thunderbird versions prior to 148 Thunderbird ESR versions 140.7 through 140.7 Description The software contains memory safety...

PT-2026-21695

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description An integer overflow exists in the JavaScript: Standard Library component. This issue may allow...

PT-2026-21696

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Firefox ESR versions prior to 115.33 Firefox ESR versions prior to 140.8 Thunderbird versions prior to 148 Thunderbird versions prior to 140.8 Description A use-after-free issue exists in the JavaScript Engine...