Wasmtime Sandbox Escape Flaws Patched in Cranelift
Two critical Wasmtime sandbox escape flaws, CVE-2026-115889 and CVE-2026-115893, let a crafted WebAssembly (Wasm) module push the Cranelift compiler into generating unsafe machine code. The Bytecode Alliance fixed both on October 19, 2026, and rated each 9.9 under CVSS v3.1. Platforms that compile Wasm from customers or other outside parties carry the most risk, because […]
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