CVE-2026-86853 Repeated external URL scheme launches could potentially cause a denial of service in Firefox for iOS

A malicious webpage could repeatedly trigger external URL schemes, causing system prompts or external application launches. This could make Firefox for iOS temporarily unusable until the page is closed. This vulnerability was fixed in Firefox for iOS 155.1...

CVE-2026-86853

Firefox for iOS is affected by a vulnerability where a malicious webpage could repeatedly trigger external URL schemes , causing system prompts or external application launches. This could render Firefox for iOS temporarily unusable until the offending page is closed, effectively a denial of serv...

CVE-2026-86853 Repeated external URL scheme launches could potentially cause a denial of service in Firefox for iOS

A malicious webpage could repeatedly trigger external URL schemes, causing system prompts or external application launches. This could make Firefox for iOS temporarily unusable until the page is closed. This vulnerability was fixed in Firefox for iOS 155.1...

Security Bulletin: Vulnerabilities exists in IBM Cloud Pak for Data System (Yosemite 1.0)

Summary Vulnerabilities identified in IBM Cloud Pak for Data System Yosemite 1.0 have been addressed in version 11.3.1.2-IF2 Vulnerability Details CVEID:CVE-2026-41848 DESCRIPTION: Applications may be vulnerable to a Regular Expression Denial of Service ReDoS attack if an attacker is able to...

firefox: thunderbird: Mitigation bypass in the Data Loss Prevention component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Mitigation bypass in the Data Loss Prevention component...

firefox: thunderbird: Use-after-free in the DOM: Core & HTML component

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

firefox: thunderbird: Privilege escalation due to use-after-free in the Graphics: Canvas2D component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation due to use-after-free in the Graphics: Canvas2D component...

firefox: thunderbird: Use-after-free in the Graphics: Text component

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

firefox: thunderbird: Privilege escalation in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the Graphics: CanvasWebGL component...

firefox: thunderbird: Internally found bugs fixed in Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1 and Firefox 154

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Internally found bugs present in Thunderbird ESR 140.13, Thunderbird ESR 153.0 and Thunderbird 153. Some of these bugs showed evidence of memory corruption or another...

firefox: thunderbird: Site isolation issue in the Graphics: CanvasWebGL component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Site isolation issue in the Graphics: CanvasWebGL component...

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...

firefox: thunderbird: Use-after-free in the JavaScript: WebAssembly 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: WebAssembly component...

firefox: Integer overflow in the Graphics component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Integer overflow in the Graphics component...

firefox: thunderbird: Privilege escalation in the DOM: Networking component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation in the DOM: Networking component...

firefox: thunderbird: Use-after-free in the Graphics: ImageLib component

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

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: Use-after-free in the Layout: Text and Fonts component

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

firefox: Race condition, use-after-free in the Graphics component

A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Race condition, use-after-free in the Graphics component...

firefox: thunderbird: Same-origin policy bypass in the Networking: Cookies 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 Networking: Cookies component...