Astra Linux – Vulnerability in Firefox and Thunderbird

Documents loaded with the CSP sandbox directive could have escaped the sandbox’s script restrictions by embedding additional content. This vulnerability affects Thunderbird 91.4.0, Firefox ESR 91.4.0, and Firefox 95...

Astra Linux – Vulnerability in Firefox, Thunderbird

Using techniques based on slipstream research, a malicious webpage could scan both the hosts of an internal network and the services running on the user’s local machine, using WebRTC connections. This vulnerability affects Firefox ESR 78.9, Firefox 87, and Thunderbird 78.9...

Astra Linux – Vulnerability in Thunderbird, Firefox

A poorly handled security check during the creation of a WebSocket in a WebWorker caused the Content Security Policy’s connect-src header to be ignored. This could lead to connections being made to restricted origins from within WebWorkers. This vulnerability affects Firefox 109, Firefox ESR 102....

Astra Linux – Vulnerability in Firefox, Thunderbird

The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox 94, Thunderbird 91.3, and Firefox ESR 91.3...

Astra Linux – Vulnerability in Firefox and Thunderbird

JIT compilation errors in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6...

firefox-esr-153.4.0-1.1 on GA media (moderate)

firefox-esr-153.4.0-1.1 on GA media Announcement ID: openSUSE-SU-2026:11917-1 Rating: moderate Cross-References: CVE-2026-100756 CVE-2026-100757 CVE-2026-100758 CVE-2026-100759 CVE-2026-100760 CVE-2026-100762 CVE-2026-100765 CVE-2026-100766 CVE-2026-100767 CVE-2026-100769 CVE-2026-100770...

[SECURITY] [DLA 4814-1] firefox-esr security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4814-1 [email protected] https://www.debian.org/lts/security/ Emilio Pozuelo Monfort October 02, 2026 https://wiki.debian.org/LTS -...

Debian dla-4814 : firefox-esr - security update

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4814 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4814-1 [email protected]...

Rocky Linux 8 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2025_2900)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20252900 advisory. firefox: thunderbird: Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8 CVE-2025-1938 firefox: thunderbird...

Rocky Linux 8 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2026_3515)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20263515 advisory. libvpx: Heap buffer overflow in libvpx CVE-2026-2447 firefox: Invalid pointer in the JavaScript Engine component CVE-2026-2785 firefox: Memory safety bugs...

[SECURITY] [DSA 6533-1] firefox-esr security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6533-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff September 30, 2026 https://www.debian.org/security/faq -...

Linux Distros Unpatched Vulnerability : CVE-2026-100787

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Sandbox escape in the XUL component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. CVE-2026-100787 Not...

Debian dsa-6533 : firefox-esr - security update

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6533 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6533-1 [email protected] https://www.debian.org/securit...

Linux Distros Unpatched Vulnerability : CVE-2026-100788

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird...

CentOS Linux 8.5 [TuxCare] Security Update: nss / nss-devel / nss-pkcs11-devel / nss-softokn / etc (CENTOS8.5:CLSA-2026:1786358095)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2026:1786358095 advisory. - An unchecked return value in TLS handshake code could have caused a potentially exploitable crash. This vulnerability affects Firefox 122,...

SUSE CVE-2026-100787

Sandbox escape in the XUL component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157...

SUSE CVE-2026-100808

Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157...

SUSE CVE-2026-100828

Mitigation bypass in the Bookmarks & History component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157...

SUSE CVE-2026-100829

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157...

SUSE CVE-2026-100832

Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 140.17, Thunderbird 153.4, Firefox ESR 115.42, and Firefox ESR 140.17...