Description
Wasmtime from 49.0.0 before 49.0.3 contains a denial-of-service vulnerability that allows a WebAssembly guest to trigger a host panic by transcoding overlapping strings in fused adapters. Attackers can make a same-instance component-to-component call transferring a string whose source and destination alias each other, crashing the host instead of raising a trap.
Related CPE's
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References
CVSS impact metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
4.8 · Medium
Information
Source identifier
Vulnerability status
Deferred
Published
2026-10-29T16:18:06.260Z
14 hours agoLast modified
2026-10-29T16:18:06.380Z
14 hours ago