Medium severity4.8NVD Advisory· Published Oct 29, 2026· Updated Oct 29, 2026
CVE-2026-119136
CVE-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.
Affected products
1- Range: <48.0.6, <49.0.3
Patches
Vulnerability mechanics
References
2News mentions
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