firefox: thunderbird: Sandbox escape due to use-after-free in the DOM: Navigation component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to use-after-free in the DOM: Navigation component...

firefox: thunderbird: Privilege escalation in the DOM: Content Processes component

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

firefox: thunderbird: Integer overflow in the JavaScript: WebAssembly component

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

firefox: thunderbird: Sandbox escape due to use-after-free in the Disability Access APIs component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to use-after-free in the Disability Access APIs component...

thunderbird: Off-by-one out of bounds read in MIME header parser for forwarding

A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: The code to parse MIME headers for display when forwarding a message if the setting to view all headers was enabled had an off-by-one error, allowing a single byte to be read from the memory...

RHEL 9 : thunderbird (RHSA-2026:49921)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:49921 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the DOM:...

thunderbird security update

140.13.0-1.0.1 - Fix prefs for new nss Orabug: 37079813 - Add Oracle prefs 140.13.0 - Add OpenELA debranding 140.13.0-1 - Update to 140.13.0 ESR...

thunderbird security update

140.13.0-1.0.1 - Fix prefs for new nss Orabug: 37079820 - Add Oracle prefs file 140.13.0 - Add OpenELA debranding 140.13.0-1 - Update to 140.13.0 ESR...

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the DOM: Navigation component CVE-2026-15719 firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component CVE-2026-15718 firefox: thunderbird: Mitigation...

ALSA-2026:49921 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the DOM: Navigation component CVE-2026-15719 firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component CVE-2026-15718 firefox: thunderbird: Mitigation...

MiracleLinux 9 : thunderbird-140.12.0-1.el9_8.ML.1 (AXSA:2026-1431:17)

The remote MiracleLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2026-1431:17 advisory. firefox: thunderbird: Sandbox escape in the DOM: Workers component CVE-2026-12294 firefox: thunderbird: Information disclosure, sandbox escape in th...

firefox security update

An update is available for firefox. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Mozilla Firefox is an open-source web browser, designed for standards...

RLSA-2026:47104 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: libaom: libaom: heap buffer overflow in AV1 encoder first-pass stats buffer via LAP mode CVE-2026-56208 firefox: thunderbird: Site isolation issue in the DOM: Navigation...

firefox: thunderbird: Mitigation bypass in the Enterprise Policies component

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

firefox: thunderbird: Mitigation bypass in the DOM: Networking component

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

firefox: thunderbird: Privilege escalation in the DOM: Content Processes component

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

firefox: thunderbird: Information disclosure in the Framework component in DevTools

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

firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.38, Firefox ESR 140.13 and Firefox 153

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs present in Thunderbird ESR 140.12 and Thunderbird 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of...

firefox: thunderbird: Site isolation issue in the Graphics: WebRender component

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