Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-100893)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100893 advisory. XSLT document loading did not correctly propagate the source document which bypassed its CSP. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefo...

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: 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...

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: 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: 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: 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: 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...

RHEL 9 : thunderbird (RHSA-2026:53475)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:53475 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the DOM:...

RHEL 9 : thunderbird (RHSA-2026:53444)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:53444 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the DOM:...

SUSE-SU-2026:3546-1 Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: Update to Mozilla Thunderbird 140.13. - MFSA 2026-72 bsc1271649 CVE-2026-14899: Off-by-one out of bounds read in MIME header parser for forwarding CVE-2026-15718: Invalid pointer in the JavaScript: WebAssembly component CVE-2026-15719...

[SECURITY] [DLA 4727-1] thunderbird security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4727-1 [email protected] https://www.debian.org/lts/security/ Emilio Pozuelo Monfort August 10, 2026 https://wiki.debian.org/LTS -...

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:...

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...

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...

OPENSUSE-SU-2026:11359-1 MozillaThunderbird-140.13.0-1.1 on GA media

These are all security issues fixed in the MozillaThunderbird-140.13.0-1.1 package on the GA media of openSUSE Tumbleweed...

[slackware-security] mozilla-thunderbird

New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/mozilla-thunderbird-140.13.0esr-i686-1slack15.0.txz: Upgraded. This release contains security fixes and improvements. For...

Slackware Linux 15.0 / current mozilla-thunderbird Multiple Vulnerabilities (SSA:2026-204-01)

The version of mozilla-thunderbird installed on the remote host is prior to 140.13.0esr. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2026-204-01 advisory. New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix security issues...

SUSE SLED15: MozillaThunderbird / MozillaThunderbird-translations-common / etc (SUSE-SU-2026:2852-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2852-1 advisory. This update for MozillaThunderbird fixes the following issues Update to Firefox 140.12.0 ESR MFSA 2026-58,...