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Wasmtime component async-lifted callback result count is unvalidated, causing a native stack buffer overflow

🗓️ 02 Oct 2026 12:00:00Reported by rustsecType 
rustsec
 rustsec
🔗 rustsec.org👁 2 Views

Unvalidated result count in Wasmtime component async-lifted callback causes stack overflow.

Detection
Vulners
Node
OR
bytecodealliancewasmtimeRange39.0.0–48.0.4rust
bytecodealliancewasmtimeRange49.0.0–49.0.2rust

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02 Oct 2026 20:27Current
5.8Medium risk
Vulners AI Score5.8
2