CVE-2026-115383

The Wasmtime runtime versions 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 are vulnerable to an improper validation flaw. The issue arises when core modules import WebAssembly tags with a subtype of the original type. This allows malicious guests to mis-type exception object payloads , leading t...

RUSTSEC-2026-0325 Mis-typed WebAssembly tag imports can lead to GC heap corruption

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-cfhf-m2cr-62wj For more information see the GitHub-hosted security advisory...