CVE-2026-119136

CVE-2026-119136CVE-2026-119136

Description

Wasmtime 42.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains insufficient checks in Store when mixing async-style and sync-style WebAssembly calls. Embedders re-entering WebAssembly via sync APIs from host functions called asynchronously can trigger runtime panics or unsound cross-thread movement of !Send host variables.

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.