> Two Critical Wasmtime Flaws Could Let Malicious WebAssembly Modules Escape Sandboxes
[DATE: 26/10/2026 11:52]
[LANGUAGE: EN]
Two critical flaws in Wasmtime, a WebAssembly runtime that can be built into other software, could allow a malicious WebAssembly module to escape the sandbox intended to contain it, the project's maintainers say.
An attacker would first need a vulnerable Wasmtime build to compile a module they control, and one of the flaws affects only ARM64 systems. Fixed versions were released on