CVE-2026-119139

EUVD-2026-113206
Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a leftover assertion in component::Func::call that rejects guest exports using the async ABI option. An attacker who supplies a component with an async-lifted export can crash the host process when an embedder invokes that export through Func::call.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
4.8 MEDIUM
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
bytecodealliancewasmtime
46.0.0 ≤
𝑥
< 48.0.6
CNA
bytecodealliancewasmtime
49.0.0 ≤
𝑥
< 49.0.3
CNA
Debian logo
Debian Releases
Debian Product
Codename
rust-wasmtime
forky
36.0.13+dfsg-1
fixed
sid
36.0.13+dfsg-1
fixed
trixie
26.0.1+dfsg-3
fixed