CVE-2026-119136

4.8 MEDIUMpublic exploit available

Published 2026-10-29 · Updated 2026-10-29

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD 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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H

Weaknesses

CWE-1265

Public exploit & PoC references

https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-vcg5-q8m5-8379

All references

https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-vcg5-q8m5-8379
https://www.vulncheck.com/advisories/wasmtime-42.0.0-before-48.0.6-and-49.0.0-before-49.0.3-async-entrypoint-enforcement-bypass

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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