rust-wasmtime: Wasmtime is a runtime for WebAssembly
CVE-2026-58494 is fixed in rust-wasmtime on 1 platform by DEBIAN-CVE-2026-58494 (version 36.0.12+dfsg-1), released July 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Wasmtime is a runtime for WebAssembly. Prior to 24.0.11, 36.0.12, 45.0.3, and 46.0.1, wasmtime-wasi hard-link creation and renaming check directory permissions but not matching FilePerms on source and destination preopens, allowing a WASI guest with a read-only source file capability to overwrite host files exposed as FilePerms::READ through wasip1, wasip2, or wasip3 filesystem interfaces. This issue is fixed in versions 24.0.11, 36.0.12, 45.0.3, and 46.0.1.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rust-wasmtime · Debian 14 | 36.0.12+dfsg-1 | DEBIAN-CVE-2026-58494 | Jul 10, 2026 |
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