CVE-2026-8389

CVE-2026-8389 This vulnerability was intended to be used at Pwn2Own 2026 Berlin, but was patched in version 150.0.3. SpiderMonkey BaselineJIT pcOffset bitfield truncation on the eager off-thread baseline-compile path, leading to a wrong-but-in-bounds bytecode pc during exception unwinding and a...

cve-2019-11707

SpiderMonkey - CVE-2019-11707 Bug: https://bugs.chromium.org/p/project-zero/issues/detail?id=1820 Screenshots Files exploit.js - Actual exploit, prepended by saelo's util.js & Int64.js. stager.js - Used for creating constants, prepended by saelo's util.js & Int64.js...

CVE-2024-8381

CVE-2024-8381 A SpiderMonkey Interpreter Type Confusion Bug. This repository contains analyses in markdown and slide forms, including root cause, PoC, and exploit. Unfortunately, due to nature of this bug, exploit is only applicable when ASLR is disabled. Slides: Slides.pdf Analysis: Analysis.md...

CVE-2024-29943

CVE-2024-29943 Un bug de JIT de SpiderMonkey de Pwn2Own: Desde inconsistencia en el rango de enteros hasta eliminación de comprobación de límites y luego RCE. Este repositorio contiene PoC, Exploit y Diapositivas de Análisis para CVE-2024-29943. Demo Demo.mp4 Diapositivas Slides.pdf Información...

CVE-2026-84118-who-labeled-the-crit-as-a-high

CVE-2026-84118 — SpiderMonkey GC use-after-free Bug 2057457 This is one of those where Mozilla labeled a Critical as a High. So someone might want to go have Firefox update the original bug hunters payment if that's the case. THE TLDR: You can do an OOB R primitive on a controlled pointer and the...

CVE-2026-2796-escape-wasm-by-using-wasm

CVE-2026-2796 — SpiderMonkey WebAssembly Sandbox Escape Proof-of-concept exploit chain for CVE-2026-2796 , a JIT miscompilation / type-confusion in Mozilla SpiderMonkey's WebAssembly import optimization "JavaScript: WebAssembly" component. A crafted wasm module obtains arbitrary read/write of the...

CVE-2026-15718-who-put-ptrs-in-my-wasm

CVE-2026-15718 — who put ptrs in my wasm Proof-of-concept exploit chain for CVE-2026-15718 , a missing-sync miscompilation in Mozilla SpiderMonkey's WebAssembly baseline compiler "JavaScript: WebAssembly" component. A single zero-trip array.fill yields a fakeobj primitive; the chain escalates to...

CVE-2024-29943

CVE-2024-29943 A Pwn2Own SpiderMonkey JIT Bug: From Integer Range Inconsistency to Bound Check Elimination then RCE. Reproducing CVE-2024-29943 for Windows, based on https://github.com/bjrjk/CVE-2024-29943 Modifications The original exploit is written for Linux, so I attempted to reproduce it on...

CVE-2024-29943-but-with-wasm

CVE-2024-29943, but with wasm An end-to-end exploit chain for CVE-2024-29943 that achieves arbitrary native code execution by smuggling shellcode into SpiderMonkey's WebAssembly JIT code page as f64.const immediates — no ROP, no VirtualProtect, no external toolchain. Verified working against the...

CVE-2026-2763-POC

漏洞 该漏洞源于 for-in 语法的实现。 for-in 循环的作用域由一对字节码表示：JSOP::Iter 和 JSOP::EndIter。 root@kitploit: CASEIter MOZASSERTREGS.stackDepth = 1; HandleValue val = REGS.stackHandleAt-1; JSObject iter = ValueToIteratorcx, val; // 1 if !iter goto error; REGS.sp-1.setObjectiter; // 2 ... CASEEndIter...

Exploit for Protection Mechanism Failure in Mozilla Firefox

CVE-2026-2796 + CVE-2026-2768 — Escape the Wasm Box Full-chai...

Exploit for Type Confusion in Mozilla Firefox

CVE-2026-2796 — SpiderMonkey WebAssembly Sandbox Escape Proof...

OESA-2026-3213 mozjs102 security update

SpiderMonkey is the code-name for Mozilla Firefox's C++ implementation of JavaScript. It is intended to be embedded in other applications that provide host environments for JavaScript. Security Fixes: Unexpected data returned from the Safe Browsing API could have led to memory corruption and a...

MiracleLinux 8 : thunderbird-102.13.0-2.el8.ML.1 (AXSA:2023-6238:20)

The remote MiracleLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2023-6238:20 advisory. Mozilla: Use-after-free in WebRTC certificate generation CVE-2023-37201 Mozilla: Potential use-after-free from compartment mismatch in SpiderMonkey...

MiracleLinux 9 : thunderbird-102.8.0-2.el9.ML.1 (AXSA:2023-5140:11)

The remote MiracleLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2023-5140:11 advisory. Mozilla: Arbitrary memory write via PKCS 12 in NSS CVE-2023-0767 Mozilla: Content security policy leak in violation reports using iframes...

MiracleLinux 9 : thunderbird-102.13.0-2.el9.ML.1 (AXSA:2023-6243:21)

The remote MiracleLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2023-6243:21 advisory. Mozilla: Use-after-free in WebRTC certificate generation CVE-2023-37201 Mozilla: Potential use-after-free from compartment mismatch in SpiderMonkey...

MiracleLinux 7 : firefox-102.13.0-2.0.1.el7.AXS7 (AXSA:2023-6240:25)

The remote MiracleLinux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2023-6240:25 advisory. Mozilla: Use-after-free in WebRTC certificate generation CVE-2023-37201 Mozilla: Potential use-after-free from compartment mismatch in SpiderMonkey...

CVE-2025-14322

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6...

CVE-2025-14331

Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6...

CVE-2025-14330

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6...