CVE-2026-74984

A race condition vulnerability exists in the JavaScript Engine component of several Mozilla products. This flaw, identified as CVE-2026-74984 , was patched in Firefox 154 , Firefox ESR 153.1 , Thunderbird 154 , and Thunderbird 153.1 . The vulnerability is characterized as CWE-362 (Concurrent Exec...

CVE-2026-74976

JIT miscompilation in the JavaScript Engine: JIT 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...

EUVD-2026-60670

JIT miscompilation in the JavaScript Engine: JIT 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...

CVE-2026-74976 JIT miscompilation in the JavaScript Engine: JIT component

JIT miscompilation in the JavaScript Engine: JIT 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...

CVE-2026-74976 JIT miscompilation in the JavaScript Engine: JIT component

JIT miscompilation in the JavaScript Engine: JIT 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...

CVE-2026-74976

The JavaScript Engine: JIT component in Mozilla Firefox and Mozilla Thunderbird is vulnerable to a JIT miscompilation flaw (CVE-2026-74976). This issue is addressed in Firefox 154 , Firefox ESR 140.14 , Firefox ESR 153.1 , Thunderbird 154 , Thunderbird 140.14 , and Thunderbird 153.1 . While sever...

CVE-2026-74976

JIT miscompilation in the JavaScript Engine: JIT 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...

CVE-2026-74976

JIT miscompilation in the JavaScript Engine: JIT 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...

PT-2026-77017

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 154 Firefox ESR versions prior to 153.1 Thunderbird versions prior to 154 Thunderbird versions prior to 153.1 Description A race condition exists in the JavaScript Engine component. A race condition is a situation whe...

CVE-2026-74984: Concurrent Execution using Shared Resource with Improper Synchronization

Race condition in the JavaScript Engine component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1...

PT-2026-77009

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 154 Firefox ESR versions prior to 140.14 Firefox ESR versions prior to 153.1 Thunderbird versions prior to 154 Thunderbird versions prior to 140.14 Thunderbird versions prior to 153.1 Description A JIT miscompilation...

CVE-2026-74976: Access of Resource Using Incompatible Type

JIT miscompilation in the JavaScript Engine: JIT 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...

GHSA-V5X7-VHWF-5V44 vulnerabilities

Vulnerabilities for packages: firefox...

CVE-2026-47698

creationtimestamp| type| source ---|---|--- 2026-08-17 20:20:04+00:00| seen| https://bsky.app/profile/stackflag.bsky.social/post/3mtcjmnli3k24 2026-08-17 20:35:07+00:00| published-proof-of-concept| https://github.com/patriksimek/vm2/security/advisories/GHSA-cfcw-xp6x-25gj 2026-08-17 22:08:18+00:0...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-101365)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101365 advisory. Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. Tenable ha...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-101144)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101144 advisory. Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. Tenable h...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: firefox (UTSA-2026-100941)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100941 advisory. Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-101117)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101117 advisory. Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-100901)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100901 advisory. JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-101374)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101374 advisory. Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. Tenab...