| Name | CVE-2026-115393 |
| Description | 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| rust-wasmtime (PTS) | trixie | 26.0.1+dfsg-3 | vulnerable |
| forky, sid | 36.0.13+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| rust-wasmtime | source | (unstable) | 36.0.13+dfsg-1 |
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hgjw-h833-99q9
https://rustsec.org/advisories/RUSTSEC-2026-0222.html