CVE-2026-84125

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2...

CVE-2026-84124

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2...

CVE-2026-84124 Use-after-free in the DOM: Core & HTML component

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2...

PT-2026-84174

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 155 Firefox ESR versions prior to 115.40 Firefox ESR versions prior to 140.15 Firefox ESR versions prior to 153.2 Thunderbird versions prior to 155 Thunderbird versions prior to 140.15 Thunderbird versions prior to...

firefox: thunderbird: Information disclosure in the DOM: Push Subscriptions component

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

CVE-2026-74944 Use-after-free in the DOM: Core & HTML component

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

KLA91227 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. 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 ...

CVE-2026-15123

An insufficient data validation flaw was found in the DOM component of the Chromium browser. Upstream bugs: https://code.google.com/p/chromium/issues/detail?id=523729553...

UBUNTU-CVE-2026-16382

Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153...

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

Updated firefox, firefox-l10n, rootcerts, nss packages fix security vulnerabilities

The updated packages fix security vulnerabilities: Privilege escalation in the Graphics: WebRender component. CVE-2026-12289 Memory safety bug fixed in Firefox ESR 140.12. CVE-2026-12290 Use-after-free in the Networking: HTTP component. CVE-2026-12291 Incorrect boundary conditions in the Web Audi...

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Sandbox escape in the DOM: Workers component CVE-2026-12294 firefox: thunderbird: Information disclosure, sandbox escape in the Security: Process Sandboxing component CVE-2026-12313 firefox:...

ALSA-2026:29940 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Sandbox escape in the DOM: Workers component CVE-2026-12294 firefox: thunderbird: Information disclosure, sandbox escape in the Security: Process Sandboxing component CVE-2026-12313 firefox:...

RLSA-2026:27733 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox: thunderbird: Sandbox escape in the DOM: Workers component CVE-2026-12294 firefox: thunderbird: Information disclosure, sandbox escape in the Security: Process...

RLSA-2026:27734 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox: thunderbird: Sandbox escape in the DOM: Workers component CVE-2026-12294 firefox: thunderbird: Information disclosure, sandbox escape in the Security: Process...

AlmaLinux 10 : firefox (ALSA-2026:27733)

The remote AlmaLinux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:27733 advisory. firefox: thunderbird: Sandbox escape in the DOM: Workers component CVE-2026-12294 firefox: thunderbird: Information disclosure, sandbox escape in the...

Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox: thunderbird: Sandbox escape in the DOM: Workers component CVE-2026-12294 firefox: thunderbird: Information disclosure, sandbox escape in the Security: Process...

ALSA-2026:27733 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox: thunderbird: Sandbox escape in the DOM: Workers component CVE-2026-12294 firefox: thunderbird: Information disclosure, sandbox escape in the Security: Process...

CVE-2026-12302 Mitigation bypass in the DOM: Security component

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12...

ROS-20260605-73-0102

Vulnerability of the DOM component: The security of Mozilla Firefox, Firefox ESR, and the email client Thunderbird relies on bypassing authentication using an alternative path or channel. Exploiting this vulnerability allows a malicious actor to circumvent existing security restrictions remotely...