CVE-2026-74939

Mozilla Firefox's DOM: Navigation component contains a privilege escalation flaw (CVSS 8.8 HIGH). Exploitation requires a network-based attacker to lure a user into visiting a crafted page. Affected versions must be upgraded to Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, or Firefox ESR 1...

CVE-2026-74941 Privilege escalation in the Graphics: CanvasWebGL component

Privilege escalation in the Graphics: CanvasWebGL 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-2026-74940

CVE-2026-74940 is a use-after-free vulnerability in the Graphics: Text component of Mozilla Firefox and Thunderbird . It carries a CVSS 3.1 score of 9.8 (Critical) with a network attack vector requiring no privileges or user interaction. The Debian advisory notes that the vulnerability could pote...

CVE-2026-74940 Use-after-free in the Graphics: Text component

Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

CVE-2026-74940 Use-after-free in the Graphics: Text component

Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

CVE-2026-74939 Privilege escalation in the DOM: Navigation component

Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

CVE-2026-74941 Privilege escalation in the Graphics: CanvasWebGL component

Privilege escalation in the Graphics: CanvasWebGL 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-2026-74939 Privilege escalation in the DOM: Navigation component

Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

CVE-2026-74941

Mozilla Firefox's CanvasWebGL graphics component allows privilege escalation. Fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1. CVSS 8.8 (HIGH) with network attack vector requiring user interaction. No exploitation reported in the wild; users should update to the patched versions. ...

CVE-2026-74936 Use-after-free in the JavaScript: WebAssembly component

Use-after-free in the JavaScript: WebAssembly 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-2026-74934 Site isolation issue in the Graphics: CanvasWebGL component

Site isolation issue in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

CVE-2026-74935

Mozilla Firefox's DOM Networking component has a privilege escalation flaw, scoring CVSS 8.8 (HIGH). An attacker can trigger it via a malicious webpage (network vector, low complexity). Affected users should upgrade to Firefox 154, ESR 115.39, ESR 140.14, or ESR 153.1. No in-the-wild exploitation...

CVE-2026-74935 Privilege escalation in the DOM: Networking component

Privilege escalation in the DOM: Networking component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

CVE-2026-74934

CVE-2026-74934 is a site isolation issue in the Graphics: CanvasWebGL component of Mozilla Firefox and Thunderbird. The CVSS 3.1 score is 7.5 (HIGH) with a vector of AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating a network-exploitable flaw requiring user interaction and high attack complexity, b...

CVE-2026-74935 Privilege escalation in the DOM: Networking component

Privilege escalation in the DOM: Networking component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

CVE-2026-74936

A use-after-free in the JavaScript: WebAssembly component of Firefox/Thunderbird can lead to memory corruption and arbitrary code execution. CVSS 9.8 (network, no auth required). Fixed in Firefox 154, ESR 140.14, ESR 153.1, Thunderbird 154, 140.14, and 153.1; Debian and Slackware packages updated...

CVE-2026-74936 Use-after-free in the JavaScript: WebAssembly component

Use-after-free in the JavaScript: WebAssembly 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-2026-74934 Site isolation issue in the Graphics: CanvasWebGL component

Site isolation issue in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1...

Exploit for Cross-site Scripting in Mozilla Bleach

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Security Bulletin: Vulnerabilities found in Watson Data Intelligence

Summary Multiple Vulnerabilities were addressed in Watson Data Intelligence version 5.4.0 Patch4 Vulnerability Details CVEID:CVE-2026-48522 DESCRIPTION: PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient passes its uri argument directly to urllib.request.urlopen whic...