MEDIUMCVSS v3.1 4.8Vulnerability
CVE-2026-119140
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.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-29T19:54:00.882258+00:00
- Cvss score
- 4.8
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-10-29T19:54:43+00:00
- Score
- 4.8
- Last source
- NVD
- Cvss version
- 3.1
- Cve id
- CVE-2026-119140
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
- First seen by Signal
- 2026-10-29T19:54:43+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
- Published at
- 2026-10-29T16:18:07.520
- Last modified
- 2026-10-29T16:18:07.630
Related Entities (1)
HAS_WEAKNESS (1)
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