medium4.8
CVE-2026-119139
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 op…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| Wasmtime 46.0.0 | before 48.0.6 |
| 49.0.0 | before 49.0.3 |
Versions were read from the advisory text. No structured product data has been published for this record yet.