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Medium severity4.8NVD Advisory· Published Oct 29, 2026· Updated Oct 29, 2026

CVE-2026-119142

CVE-2026-119142

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.

Affected products

2
  • Bytecodealliance/Wasmtimeinferred2 versions
    >=46.0.0,<48.0.6,>=49.0.0,<49.0.3+ 1 more
    • (no CPE)range: >=46.0.0,<48.0.6,>=49.0.0,<49.0.3
    • (no CPE)range: <48.0.6, <49.0.3

Patches

Vulnerability mechanics

References

2

News mentions

0

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