CVE-2026-119140 — Vulnerability intelligence
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Published:
- CVSS
- 5.9
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows malicious components to panic the host via thread.yield in start functions. Attackers can supply a component whose start function calls an async-lowered import then thread.yield, causing an undisposed fiber drop that crashes embedders.