CVE-2026-119136
MEDIUM
MEDIUM
Priority: 0.00
BB Relevance:
42/100
Published: 2026-10-29
Modified: 2026-10-29
First seen: 2026-10-29
Status: active
Attack Surface
Network
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
Low
UI:
Passive
AT:
Present
VC:
None
VI:
None
VA:
High
Description
Wasmtime 42.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains insufficient checks in Store when mixing async-style and sync-style WebAssembly calls. Embedders re-entering WebAssembly via sync APIs from host functions called asynchronously can trigger runtime panics or unsound cross-thread movement of !Send host variables.
Weakness Classification (1)
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| bytecodealliance | wasmtime | 42.0.0 < 48.0.6 |