Mozilla: Arbitrary JavaScript execution in PDF.js

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes this flaw as follows: A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution in the PDF.js context...

RHSA-2026:54339 Red Hat Security Advisory: firefox security update

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RHSA-2026:54249 Red Hat Security Advisory: firefox security update

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Important: Red Hat Security Advisory: firefox security update

An update for firefox 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 the DOM: Navigation component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the DOM: Navigation 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: Memory safety bugs fixed in 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...

Important: Red Hat Security Advisory: firefox security update

An update for firefox is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...

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...

RHSA-2026:54185 Red Hat Security Advisory: firefox security update

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RHSA-2026:54181 Red Hat Security Advisory: firefox security update

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RHSA-2026:54180 Red Hat Security Advisory: firefox security update

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RHSA-2026:53453 Red Hat Security Advisory: thunderbird security update

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

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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: Same-origin policy bypass in the DOM: Navigation component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Same-origin policy bypass in the DOM: Navigation 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: Same-origin policy bypass in the DOM: Navigation component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Same-origin policy bypass in the DOM: Navigation 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: 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...