RHSA-2026:53446 Red Hat Security Advisory: thunderbird security update

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firefox: thunderbird: Privilege escalation in WebExtensions

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

firefox: thunderbird: Site isolation issue in the Networking component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Site isolation issue in the Networking component...

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

firefox: thunderbird: Mitigation bypass in the PDF Viewer component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Mitigation bypass in the PDF Viewer component...

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring...

firefox: thunderbird: Privilege escalation in WebExtensions

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

firefox: thunderbird: Information disclosure in the Storage: IndexedDB component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the Storage: IndexedDB component...

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

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

firefox: thunderbird: Site isolation issue in the Networking component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Site isolation issue in the Networking component...

firefox: thunderbird: Information disclosure in the Graphics: ImageLib component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure in the Graphics: ImageLib component...

firefox: thunderbird: Privilege escalation in WebExtensions

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

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

Vulnerability of the DOM component: Security features in Firefox web browser and Thunderbird email client, which allow attackers to access confidential data

The vulnerability of the DOM component: The security of Firefox web browser and Thunderbird email client is related to the disclosure of information. Exploiting this vulnerability can allow a malicious actor to gain access to confidential data remotely...

Vulnerability of the Widget component: Firefox web browser and Thunderbird email client, allowing attackers to trigger a service failure.

The vulnerability of the Widget component: The Firefox web browser and Thunderbird email client have a vulnerability related to an incorrect limitation on the visible layers of the user interface. Exploiting this vulnerability could allow an attacker to cause service failures...

The vulnerability of the postMessage component in the Firefox web browser and Thunderbird email client, which allows a hacker to trigger a service failure.

The vulnerability of the postMessage component in the Firefox web browser and the Thunderbird email client is related to the。 Exploiting this vulnerability can allow a malicious actor to cause service failures remotely...

The vulnerability of the Cookies component in the Firefox web browser and the Thunderbird email client allows a hacker to trigger a service failure.

The vulnerability of the Cookies component in the Firefox web browser and the Thunderbird email client relates to bypassing authentication by using an alternative path or channel. Exploiting this vulnerability can allow a remote attacker to cause a service failure...

Vulnerability of the Graphics component: WebGPU in the Firefox web browser and Thunderbird email client, allowing attackers to access confidential data

The vulnerability of the Graphics component: WebGPU in the Firefox web browser and Thunderbird email client involves the disclosure of information. Exploiting this vulnerability can allow an attacker to gain access to confidential data remotely...

Vulnerability of the Networking component: The JAR web browser Firefox and the email client Thunderbird, which allow attackers to access and compromise confidential data.

Vulnerability of the Networking component: The JAR web browser Firefox and the email client Thunderbird are vulnerable due to a lack of source verification mechanism. Exploiting this vulnerability allows an attacker to gain access to confidential data and compromise its integrity...

Vulnerability of the WebRTC component: The Audio/Video features in the Firefox web browser and the Thunderbird email client, which allow attackers to trigger a service failure.

The vulnerability of the WebRTC component: The Audio/Video features in the Firefox web browser and the Thunderbird email client are related to insecure privilege management. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...