[SECURITY] Fedora 45 Update: thunderbird-155.0-4.fc45

Mozilla Thunderbird is a standalone mail and newsgroup client...

SUSE SLED15: MozillaThunderbird / MozillaThunderbird-translations-common / etc (SUSE-SU-2026:4268-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4268-1 advisory. Mozilla Thunderbird 153.2: fixed: Deleting an Exchange account retained the outgoing server settings fixed:...

Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: Mozilla Thunderbird 153.2: fixed: Deleting an Exchange account retained the outgoing server settings fixed: Thunderbird upgrade disabled Settings menu for versions before macOS 13 fixed: Windows jump list menu no longer functioned...

SUSE-SU-2026:4268-1 Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: Mozilla Thunderbird 153.2: fixed: Deleting an Exchange account retained the outgoing server settings fixed: Thunderbird upgrade disabled Settings menu for versions before macOS 13 fixed: Windows jump list menu no longer functioned...

firefox: thunderbird: Privilege escalation in the DOM: Workers component

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

[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-140.16.0esr-i686-1slack15.0.txz: Upgraded. This release contains security fixes and improvements. For...

Mozilla Thunderbird < 156.0

The version of Thunderbird installed on the remote Windows host is prior to 156.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-94 advisory. - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156, Firefox ES...

Mozilla Thunderbird < 140.16

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 140.16. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-95 advisory. - Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This...

Mozilla Thunderbird < 153.3

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 153.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-96 advisory. - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,...

Slackware Linux 15.0 / current mozilla-thunderbird Multiple Vulnerabilities (SSA:2026-259-02)

The version of mozilla-thunderbird installed on the remote host is prior to 140.16.0esr / 153.3.0esr. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2026-259-02 advisory. New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix securit...

Mozilla Thunderbird < 156.0

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 156.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-94 advisory. - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,...

Mozilla Thunderbird < 140.16

The version of Thunderbird installed on the remote Windows host is prior to 140.16. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-95 advisory. - Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerabilit...

KLA91285 Multiple vulnerabilities in Mozilla Thunderbird ESR

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information. Below is a complete list of vulnerabilities: 1. Security vulnerability can ...

KLA91287 Multiple vulnerabilities in Mozilla Thunderbird

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information, spoof user interface. Below is a complete list of vulnerabilities: 1...

OESA-2026-3842 thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2.CVE-2026-84119 Use-after-free in the...

Astra Linux – Vulnerability in Firefox and Thunderbird

A permission leak could have occurred from a trusted site to an untrusted site through embed or object elements. This vulnerability affects Firefox 132, Firefox ESR 128.4, Firefox ESR 115.17, Thunderbird 128.4, and Thunderbird 132...

Astra Linux – Vulnerability in Firefox and Thunderbird

After requesting multiple permissions and closing the first permission panel, subsequent permission panels will be displayed in a different position, but still record a click at the default location. This allows users to be tricked into accepting permissions they do not want to grant. This bug on...

Astra Linux – Vulnerability in Firefox and Thunderbird

The application failed to account for exceptions thrown by the loadManifestFromFile method during add-on signature verification. This flaw, triggered by an invalid or unsupported extension manifest, could have caused runtime errors that disrupted the signature validation process. As a result, the...

Astra Linux – Vulnerability in Firefox and Thunderbird

When a ServiceWorker intercepted a request using FetchEvent, the origin of the request was lost after the ServiceWorker took control of it. This caused the SameSite cookie protections to be negated. This issue was addressed in the specifications, and later in various browsers. This vulnerability...

RLSA-2026:65159 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the Graphics: CanvasWebGL component CVE-2026-74934 firefox: thunderbird: Privilege escalation in the Networking: Cookies component CVE-2026-74953 firefox: thunderbird:...