medium4.8
CVE-2026-115383
Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains an improper validation vulnerability that accepts components whose core modules import WebAssem…
Impact
Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains an improper validation vulnerability that accepts components whose core modules import WebAssembly tags with a subtype of the original type. Malicious guests can mis-type exception object payloads to corrupt the GC heap, causing Wasmtime to panic when the exceptions proposal is enabled.
Affected products
| Product | Affected versions |
|---|---|
| Wasmtime 47.0.0 | before 48.0.4 |
| 49.0.0 | before 49.0.2 |
Versions were read from the advisory text. No structured product data has been published for this record yet.