Walma: Learning to See Memory Corruption in WebAssembly

WebAssembly's Wasm monolithic linear memory model facilitates memory corruption attacks that can escalate to cross-site scripting in browsers or go undetected when a malicious host tampers with a module's state. Existing defenses rely on invasive binary instrumentation or custom runtimes, and do...

Weaver: Fuzzing JavaScript Engines at the JavaScript-WebAssembly Boundary

The security of modern JavaScript JS engines is critical since they provide the primary defense mechanism for executing untrusted code on the web. The recent integration of WebAssembly Wasm has transformed these engines into complex polyglot environments, creating a novel attack surface at the...

Important: thunderbird

Issue Overview: Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability affects Firefox 148, Firefox ESR 115.33, and Firefox ESR 140.8. CVE-2026-2757 Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox 148, Firefox ESR 115.33, and...

Join Us at Wasm I/O 2026

Akamai is sponsoring Wasm IO 2026 as part of our commitment to WebAssembly. Get all the details...

The vulnerability of the WebAssembly module of Google Chrome and Microsoft Edge browsers allows a hacker to trigger a service failure.

The vulnerability of the WebAssembly module in Google Chrome and Microsoft Edge is related to access control deficiencies. Exploiting this vulnerability could allow a malicious actor to cause a service failure through a specially crafted HTML page...

OPENSUSE-SU-2026:20365-1 Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: - Firefox Extended Support Release 140.8.0 ESR bsc1258568 - CVE-2026-2757: Incorrect boundary conditions in the WebRTC: Audio/Video component - CVE-2026-2758: Use-after-free in the JavaScript: GC component - CVE-2026-2759: Incorrect...

SUSE SLED15 / SLES15 / openSUSE 15 Security Update : MozillaFirefox (SUSE-SU-2026:0871-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0871-1 advisory. Update to Firefox Extended Support Release 140.8.0 ESR MFSA 2026-15 bsc1258568: - CVE-2026-2757:...

Build Serverless Functions with Zero Cold Starts: WebAssembly and Spin

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Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.8.0 ESR MFSA 2026-15 bsc1258568: CVE-2026-2757: Incorrect boundary conditions in the WebRTC: Audio/Video component CVE-2026-2758: Use-after-free in the JavaScript: GC component CVE-2026-2759:...

SUSE-SU-2026:0871-1 Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.8.0 ESR MFSA 2026-15 bsc1258568: - CVE-2026-2757: Incorrect boundary conditions in the WebRTC: Audio/Video component - CVE-2026-2758: Use-after-free in the JavaScript: GC 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...

Mozilla Firefox and Mozilla Thunderbird Code Execution Vulnerability

Mozilla Firefox is an open source web browser.Mozilla Thunderbird is a set of e-mail client software separate from the Mozilla Application Suite. The software supports IMAP, POP mail protocols and HTML mail format. A code execution vulnerability exists in Mozilla Firefox and Mozilla Thunderbird,...

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...

An Analysis of Modern Web Security Vulnerabilities Inside WebAssembly Applications

The growth in the adoption of the WebAssembly WASM standard has given rise to a rapidly increasing landscape of binary applications that are natively ported to the environment of websites. The flexibility of WASM has made it the preferred way to run fast and resource-heavy applications, replacing...

Fedora 43 : chromium (2026-f62db6b372)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-f62db6b372 advisory. Update to 145.0.7632.159 CVE-2026-3536: Integer overflow in ANGLE CVE-2026-3537: Object lifecycle issue in PowerVR CVE-2026-3538: Integer overflow i...

MGASA-2026-0052 Updated rootcerts, nss & firefox packages fix security vulnerabilities

Incorrect boundary conditions in the WebRTC: Audio/Video component. CVE-2026-2757 Use-after-free in the JavaScript: GC component. CVE-2026-2758 Incorrect boundary conditions in the Graphics: ImageLib component. CVE-2026-2759 Sandbox escape due to incorrect boundary conditions in the Graphics:...

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: 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: 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: 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...