EUVD-2026-21023

Wasmtime segfault or unused out-of-sandbox load with f64x2.splat operator on x86-64...

The vulnerability of the Cranelift compiler (previously Cretonne) for WebAssembly applications, Wasmtime, arises from the execution of operations beyond the buffer boundaries in memory. This vulnerability allows an attacker to execute arbitrary code or cause a service failure.

The vulnerability of the Cranelift compiler previously Cretonne for WebAssembly applications relates to the execution environment. This vulnerability stems from the operation of pushing an instruction out of the buffer into memory when determining linear memory addressing rules. Exploiting this...