CVE-2026-115385

MediumCVSS 6.2/10Last modified Oct 26, 2026

Description

Wasmtime 46.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a denial of service vulnerability in the wasmtime-wasi WASIp3 implementation that allows guests to abort the Unix host process. Guests with mutable preopened directory access can call set-times or set-times-at with negative seconds timestamps before the epoch, triggering an assertion failure that crashes the host.

Metrics

CVSS 3.1 6.2/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-754

Affected software

Vendor	Product	Versions
bytecodealliance	wasmtime	>= 46.0.0, < 48.0.4; >= 49.0.0, < 49.0.2

References

Timeline

Published: Oct 22, 2026
Last modified: Oct 26, 2026
NVD status: Deferred

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