CVE-2026-119139

MEDIUM Status: Deferred

CVSS Scores

CVSS v3.x Base Score
4.8
MEDIUM

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.

Published
October 29, 2026 4:18 PM
Last Modified
October 29, 2026 4:18 PM
Source
[email protected]

Weaknesses (CWE)

CWE-617

References

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