rust-wasmtime: Wasmtime before 24.0.12, 25.0.0 before 36.0.13, 37.0.0 before 46.0.2, and 47.0.0 before 47.0.3 contains a type confus...
CVE-2026-115393 is fixed in rust-wasmtime on 1 platform by DEBIAN-CVE-2026-115393 (version 36.0.13+dfsg-1), released October 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Wasmtime before 24.0.12, 25.0.0 before 36.0.13, 37.0.0 before 46.0.2, and 47.0.0 before 47.0.3 contains a type confusion vulnerability because several Store APIs fail to validate that objects belong to the Store's Engine. Embedders mixing objects between Engines via Instance::new, StructRefPre::new, or Tag::new can trigger trampoline signature mismatches causing out-of-bounds stack writes, GC heap corruption, or panics.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rust-wasmtime · Debian 14 | 36.0.13+dfsg-1 | DEBIAN-CVE-2026-115393 | Oct 24, 2026 |
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