Description


Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a leftover assertion in component::Func::call that rejects guest exports using the async ABI option. An attacker who supplies a component with an async-lifted export can crash the host process when an embedder invokes that export through Func::call.

Related CPE's


Could not find any relations

Weaknesses



CWE-617

CVSS impact metrics


CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H

4.8 · Medium

Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-29T16:18:07.373Z

14 hours ago

Last modified

2026-10-29T16:18:07.480Z

14 hours ago