Description
Wasmtime is a runtime for WebAssembly. Prior to 24.0.7, 36.0.7, 42.0.2, and 43.0.1, On x86-64 platforms with SSE3 disabled Wasmtime's compilation of the f64x2.splat WebAssembly instruction with Cranelift may load 8 more bytes than is necessary. When signals-based-traps are disabled this can result in a uncaught segfault due to loading from unmapped guard pages. With guard pages disabled it's possible for out-of-sandbox data to be loaded, but this data is not visible to WebAssembly guests. This vulnerability is fixed in 24.0.7, 36.0.7, 42.0.2, and 43.0.1.
INFO
Published Date :
2026-04-09T18:38:16.182Z
Last Modified :
2026-04-09T18:38:16.182Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-34944 vulnerability.
| Vendors | Products |
|---|---|
| Bytecodealliance |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34944.
