CVE catalog
CVE-2026-115892
UBUNTU-CVE-2026-115892
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.43% · Oct 27, 2026
Wasmtime is a runtime for WebAssembly. From 46.0.0 until 48.0.7 and 49.0.4, lowering a host-created component-model stream or future into a guest can omit a required payload-type check after the value passes through guest code and returns through StreamAny, FutureAny, Val::Stream, Val::Future, or an equivalent typed reader. A malicious guest that controls exported function types or returned values can cause the host to pass the type-erased value to a guest expecting a different payload type, which panics the Wasmtime host. This issue is fixed in versions 48.0.7 and 49.0.4.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Ubuntu | rust-wasmtime | 24.04 | 10.0.1+dfsg-7 | vulnerable |
| Ubuntu | rust-wasmtime | 24.04 | 15.0.1+dfsg-4 | vulnerable |
| Ubuntu | rust-wasmtime | 24.04 | 16.0.0+dfsg-2 | vulnerable |
| Ubuntu | rust-wasmtime | 24.04 | 16.0.0+dfsg-3 | vulnerable |
| Ubuntu | rust-wasmtime | 26.10 | 36.0.5+dfsg-1 | vulnerable |
| Ubuntu | rust-wasmtime | 26.10 | 36.0.13+dfsg-1 | vulnerable |
| Ubuntu | rust-wasmtime | 26.04 | 26.0.1+dfsg-3 | vulnerable |
| Ubuntu | rust-wasmtime | 26.04 | 26.0.1+dfsg-4 | vulnerable |
| Ubuntu | rust-wasmtime | 26.04 | 28.0.1+dfsg-3 | vulnerable |
| Ubuntu | rust-wasmtime | 26.04 | 29.0.1+dfsg-5 | vulnerable |
| Ubuntu | rust-wasmtime | 26.04 | 36.0.5+dfsg-1 | vulnerable |
Fixed-version evidence
OpenFactory catalog packages
No matching packages in this catalog.
Observed: