CVE-2026-109733

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

EUVD-2026-98650

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109733

A JIT miscompilation vulnerability exists in the JavaScript Engine: JIT component of Mozilla products. This flaw could potentially lead to arbitrary code execution , sandbox escape , information disclosure , mitigation bypass , or privilege escalation . The vulnerability has been addressed in Fir...

CVE-2026-109733 JIT miscompilation in the JavaScript Engine: JIT component

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109729

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109729 Use-after-free in the JavaScript Engine: JIT component

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109729

A use-after-free memory vulnerability exists in the JavaScript Engine: JIT component of Firefox and Thunderbird. An attacker could exploit incorrect memory handling by tricking a user into visiting a malicious webpage, potentially leading to arbitrary code execution or a Denial of Service (DoS) ....

CVE-2026-109722

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

EUVD-2026-98642

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

CVE-2026-109722

The JavaScript Engine: JIT component in Firefox is susceptible to a JIT miscompilation vulnerability (CVE-2026-109722 ). This issue has a high impact and was reported by Amy Burnett of OpenAI. Remediation is available in Firefox 158 , Firefox ESR 115.43 , and Firefox ESR 153.5 . Details regarding...

CVE-2026-109722 JIT miscompilation in the JavaScript Engine: JIT component

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5...

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

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

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

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

btr

Branch Target Reuse BTR Artifacts This repository contains the artifacts for the paper "Branch Target Reuse: Practical Spectre-v2 Attacks in JIT Engines via Stale Branch Prediction Entries" accepted at ACM CCS 2026. For more information about the BTR attack, see our project-page and our paper! bt...

jitsploitation

jitsploitation iOS browser exploit for CVE-2020-9802, an old JIT bug. This is an exploit for a popular JIT compiler bug in the WebKit engine for macOS and iOS originally documented by Project Zero. I re-implemented the exploit for this bug as an exercise in learning browser exploitation. Video...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9. 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 for each vulnerability from th...

kernel: x86/bugs: Enable IBPB flush on BPF JIT allocation

A flaw was found in the Linux kernel. This vulnerability involves an incomplete defense against Spectre-v2, a type of attack that can expose sensitive information by exploiting how modern processors predict future operations. Specifically, when the Berkeley Packet Filter BPF Just-In-Time JIT...

kernel: bpf: Support for hardening against JIT spraying

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF Just-In-Time JIT compiler. The BPF JIT allocator reuses memory space, and when new code is written, an indirect jump into the new program can reuse a branch prediction left behind by an old program. This could allow an attacker to...