Medium
5.9
Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 panics when the host reads a component...
CVE-2026-119135
First seen on SecPulse
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| bytecodealliance | wasmtime |
≥ 46.0.0, < 48.0.6 ≥ 49.0.0, < 49.0.3 |
48.0.6 49.0.3 |
Original description The description as published by the source.
Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 panics when the host reads a component model stream as a different Rust item type than it was created with, because the host-to-host read path asserts matching TypeIds instead of returning an error. Guest code can return a host-created StreamReader that the embedder reads as StreamReader, where both types map to the same component model type, crashing the embedding process.
Source: CVE.org (CVE Program・cvelistV5) NVD GitHub Advisory
References
- web github.com
- web vulncheck.com
- web nvd.nist.gov
- web github.com