Security Vulnerabilities fixed in Firefox 150.0.3 — Mozilla

CVE-2026-8388: Incorrect boundary conditions in the JavaScript Engine: JIT component Reporter ggwhyp Impact high References Bug 2036978 CVE-2026-8389: JIT miscompilation in the JavaScript Engine: JIT component Reporter ggwhyp Impact high References Bug 2036983 CVE-2026-8390: Use-after-free in the...

firefox: thunderbird: Use-after-free in the JavaScript Engine component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the JavaScript Engine component...

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS CVE-2026-6772 firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-6754 firefox: thunderbird: Spoofing...

Agentic Fuzzing: Opportunities and Challenges

Fuzzers and static analyzers find many bugs but struggle with logic bugs in mature codebases. Triggering such a bug often requires multi-step reasoning that produces no distinctive execution feedback, and variants can appear across implementations too different for a single pattern to match. Rece...

ALSA-2026:15892 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS CVE-2026-6772 firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-6754 firefox: thunderbird: Spoofing...

MGASA-2026-0125 Updated thunderbird packages fix security vulnerabilities

Use-after-free in the DOM: Core & HTML component. CVE-2026-6746 Use-after-free in the WebRTC component. CVE-2026-6747 Uninitialized memory in the Audio/Video: Web Codecs component. CVE-2026-6748 Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. CVE-2026-6749...

Updated thunderbird packages fix security vulnerabilities

Use-after-free in the DOM: Core & HTML component. CVE-2026-6746 Use-after-free in the WebRTC component. CVE-2026-6747 Uninitialized memory in the Audio/Video: Web Codecs component. CVE-2026-6748 Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. CVE-2026-6749...

CVE-2026-7936

Object lifecycle issue in V8 in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. Chromium security severity: Medium...

SUSE CVE-2026-7899

Out of bounds read and write in V8 in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

SUSE CVE-2026-7940

Use after free in V8 in Google Chrome prior to 148.0.7778.96 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. Chromium security severity: Medium...

SUSE CVE-2026-7999

Inappropriate implementation in V8 in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. Chromium security severity: Low...

Ubuntu 24.04 LTS / 25.10 / 26.04 LTS : WebKitGTK vulnerabilities (USN-8237-1)

The remote Ubuntu 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8237-1 advisory. Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious...

Chromium: CVE-2026-7902 Out of bounds memory access in V8

This CVE was assigned by Chrome. Microsoft Edge Chromium-based ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information...

Chromium: CVE-2026-7936 Object lifecycle issue in V8

This CVE was assigned by Chrome. Microsoft Edge Chromium-based ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information...

RLSA-2026:12285 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS CVE-2026-6772 firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-6754 firefox: thunderbird: Spoofing...

thunderbird security update

An update is available for thunderbird. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Mozilla Thunderbird is a standalone mail and newsgroup client. Security...

SUSE-SU-2026:1741-1 Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues Updated to Mozilla Thunderbird 140.10.1: MFSA 2026-34 bsc1262230: - CVE-2026-6746: Use-after-free in the DOM: Core & HTML component. - CVE-2026-6747: Use-after-free in the WebRTC component. - CVE-2026-6748: Uninitialized memory in the...

RLSA-2026:13537 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS CVE-2026-6772 firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-6754 firefox: thunderbird: Spoofing...

EUVD-2026-27983

Use after free in V8 in Google Chrome prior to 148.0.7778.96 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. Chromium security severity: Medium...

CVE-2026-7940

Use after free in V8 in Google Chrome prior to 148.0.7778.96 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. Chromium security severity: Medium...