PT-2026-76979

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 154 Firefox ESR versions prior to 115.39 Firefox ESR versions prior to 140.14 Firefox ESR versions prior to 153.1 Thunderbird versions prior to 154 Thunderbird versions prior to 140.14 Thunderbird versions prior to...

CVE-2026-74934: Exposure of Sensitive Information to an Unauthorized Actor

Site isolation issue in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

CVE-2026-74941: Improper Privilege Management

Privilege escalation in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

PT-2026-76974

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 154 Firefox ESR versions prior to 140.14 Firefox ESR versions prior to 153.1 Thunderbird versions prior to 154 Thunderbird versions prior to 140.14 Thunderbird versions prior to 153.1 Description Privilege escalation...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-101174)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101174 advisory. Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbi...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-101369)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101369 advisory. Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-101488)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101488 advisory. Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbi...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: firefox (UTSA-2026-101371)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101371 advisory. Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...

Astra Linux – Vulnerability in Firefox, Thunderbird

Sandbox escape due to incorrect boundary conditions in the Graphics:CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

firefox: thunderbird: Incorrect boundary conditions in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Incorrect boundary conditions in the Graphics: CanvasWebGL component...