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Filesystem sandbox escape when renaming symlinks with trailing slashes

🗓️ 14 Oct 2026 12:00:00Reported by rustsecType 
rustsec
 rustsec🔗 rustsec.org👁 8 Views

Filesystem sandbox escape in Wasmtime when renaming symlinks with trailing slashes.

Detection
Vulners
Node
OR
bytecodealliancewasmtime-wasiRange0.0.0–36.0.18rust
bytecodealliancewasmtime-wasiRange37.0.0–48.0.6rust
bytecodealliancewasmtime-wasiRange49.0.0–49.0.3rust

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14 Oct 2026 20:18Current
5.9Medium risk
Vulners AI Score5.9
Wasmtimesandbox escapesymlinkfilesystem
8