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CVE-2026-119142 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability where dropping the Future returned by TypedFunc::call_async can panic the host. When the guest task has not started, cleanup code searches only one location for work items and unwraps the resulting error, crashing embedders that cancel pending calls.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:4.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-3r89-v5mq-j5xf	[email protected]	AdvisoryVendor
https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-call-async-drop	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-617	Reachable Assertion	[email protected]

Affected Products

Product	Versions
bytecodealliance Wasmtime	>= 46.0.0, < 48.0.6 (semver) >= 49.0.0, < 49.0.3 (semver)
CPE cpe:2.3:a:bytecodealliance:wasmtime::::::rust::* Remediation Upgrade: 48.0.6moderate effort Upgrade: 49.0.3moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 29, 2026	CVE Modified	CISA-ADP
Oct 29, 2026	New CVE Received	[email protected]