Description


Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability where dropping the Future returned by TypedFunc::call_async can panic the host. When the guest task has not started, cleanup code searches only one location for work items and unwraps the resulting error, crashing embedders that cancel pending calls.

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

2026-10-29T16:18:07.817Z

14 hours ago

Last modified

2026-10-29T21:17:18.197Z

9 hours ago