CVE-2026-119139

CVE-2026-119139CVE-2026-119139

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.

Scoring

CVSS 4.8 ()
VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
Last modified2026-10-29
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.