CVE-2018-4121

CVE-2018-4121 - Safari Wasm Sections POC RCE Exploit by MWR Labs c 2018 Details this proof of concept exploit targets Safari 11.0.3 13604.5.6 on macOS 10.13.3 17D47 versions only. compile the payload of your choice as a dylib with a constructor run python filetojsarray.py your.dylib payload.js...

Project-Onyx

Proyecto Onyx Evasion Avanzada de EDR mediante Suplantación de Telemetría de IA y Sandboxing WASM. Project Onyx es un pipeline PoC de Red Team diseñado para demostrar técnicas avanzadas de evasión contra sistemas EDR modernos. Se aleja del ofuscamiento tradicional basado en firmas hacia el...

CVE-2018-4121

CVE-2018-4121 - Safari Wasm Sections POC RCE Exploit by MWR Labs c 2018 Details this proof of concept exploit targets Safari 11.0.3 13604.5.6 on macOS 10.13.3 17D47 versions only. compile the payload of your choice as a dylib with a constructor run python filetojsarray.py your.dylib payload.js...

CVE-2021-38297

Exploiting CVE-2021-38297: Vulnerability in GO Wasm Buffer Overflow Overview of the Vulnerability WebAssembly WASM serves as a binary instruction format executable in most modern web browsers. It acts as a compilation target for various high-level languages like C, C++, Rust, and GO, allowing cod...

amla-sandbox

amla-sandbox Este repositorio es la fuente de lanzamiento del paquete Python amla-sandbox. El desarrollo ocurre en el monorepo de amlalabs; este repositorio se actualiza en el lanzamiento. El runtime Rust que compila a amlasandbox.wasm vive en amla-sandbox-core; la etiqueta de lanzamiento exacta...

CVE-2024-2887-REPORT

SSD Advisory – Google Chrome RCE Source: ssd-disclosure.com/ssd-advisory-google-chrome-rce Summary A critical remote code execution vulnerability in Google Chrome versions 123 and earlier affecting WebAssembly WASM garbage-collection type handling. The bug allows type confusion that can be...

CVE-2026-53716

Envoy Gateway (open-source application gateway managing Envoy Proxy) has an unbounded gzip decompression vulnerability in getFileFromGZ within internal/wasm/httpfetcher.go. The function calls io.ReadAll on a gzip.Reader without limiting the decompressed output size. When a tenant-controlled Envoy...

CVE-2026-53715

Envoy Gateway (an open-source Kubernetes-based application gateway) contains a race condition in the Wasm cache: HTTPServer.ServeHTTP in internal/wasm/httpserver.go reads the mappingPath2Cache map without synchronization while HTTPServer.Get writes the same map during EnvoyExtensionPolicy transla...

CVE-2026-53717

Envoy Gateway (open-source Envoy Proxy management) is vulnerable in internal/wasm/imagefetcher.go prior to 1.7.4 and 1.8.1 . The function extractWasmPluginBinary allocates memory using the untrusted tar-header h.Size value (via make([]byte, h.Size)) before validating the entry name or declared si...

CVE-2026-6307

CVE-2026-6307: V8 JS-to-Wasm type confusion → RCE on Chrome 146 Local reproduction and weaponization of the V8 JS-to-Wasm deoptimization type confusion described by Nebula, taken to a xcalc popped from the renderer of Chrome for Testing 146.0.7680.165 the bug is fixed in 147.0.7727.101. All...

CVE-2024-1939

CVE-2024-1939 This is a short writeup for the CVE-2024-1939, which I used to claim V8CTF M122. The root cause of this issue is the lack of support for kWasmS128 in wasm-to-js conversion. Specifically, wasmS128Const operations occurring in parameter stacks are ignored, leading to type confusion wh...

CVE-2026-6307-Longinus

CVE-2026-6307-Longinus Type Confusion in V8 TurboFan JS-to-Wasm call inlining + FrameState merging Better Known as 'Longinus': 2 Boundaries in One Bug Repository: https://github.com/J4ck3LSyN-Gen2/CVE-2026-6307-Longinus Detailed Report: OS-IS-CVE-2026-6307-07-2026.md Technical Write-up: Nebula...

CVE-2024-2887

CVE-2024-2887 This is a short writeup for the CVE-2024-2887, which I used to claim V8CTF M123. When define more types than kV8MaxWasmTypes, which can be achieved by padding more types in RecGroup, the types index can be more than 20bits and then overflowed. Then two types can be considered same a...

CVE-2026-87491-and-CVE-2026-85046-the-bagel-fell-off-the-counter

CVE-2026-85046 + CVE-2026-87491 Was doing a ton of reading over at https://github.com/Serotav/Writeups. Decided to combine 85046 with 87491 and bake in some WASM at the same time. The basics: Confuse packed object and integer arrays during sort. Skip a write barrier and reclaim a young object wit...

CVE-2018-4121

CVE-2018-4121 - Safari Wasm Sections POC RCE Exploit by MWR Labs c 2018 Details this proof of concept exploit targets Safari 11.0.3 13604.5.6 on macOS 10.13.3 17D47 versions only. compile the payload of your choice as a dylib with a constructor run python filetojsarray.py your.dylib payload.js...

CVE-2025-31125

CVE-2025-31125 Exploit - Vite WASM Import Path Traversal 🛡️ Este script es un exploit prueba de concepto PoC para CVE-2025-31125 , una vulnerabilidad encontrada en Vite. El exploit aprovecha un problema de WASM Import Path Traversal para recuperar archivos sensibles de servidores vulnerables que...

py_trustwallet_wasm

This repository does not have a README...

ephemora-cell

Ephemora Cell The execution layer for untrusted AI-generated code. Fast, capability-based WASM execution with explicit CPU, memory, time, I/O, and filesystem limits — sub-millisecond warm execution with sign-ready execution records RFC 8785 JCS canonicalization + ES256sign/verify primitives. Buil...

CVE-2026-2766-but-with-wasm

CVE-2026-2766, but with wasm Status: validated crash PoC with demonstrated control-flow hijack crashpc = freed-cell poison 0xcdcdcdcdcdcdcdcd under the debug shell — the engine jumps to a pointer read out of the freed ICScript. Remaining work: control the reclaimed bytes. See research/README.md. ...

CVE-2026-2764-but-with-wasm

CVE-2026-2764, but with wasm Status: analysis + validated PoC. Primitive weaponization in progress. A WasmBlazeFox-style chain built on a 2026 bug this time: CVE-2026-2764, an IonMonkey/baseline "JIT miscompilation + use-after-free" in the JavaScript Engine: JIT component, fixed in Firefox 148 MF...