CVE-2026-115380

MediumCVSS 4.0/10Last modified Oct 22, 2026

Description

Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains a denial of service vulnerability in the wasmtime-wasi WASI preview 0 poll_oneoff adapter, which performs O(n) host work per subscription without consuming or checking fuel. Malicious guest modules can pass many subscriptions to force long-running host computation that ignores configured fuel limits.

Metrics

CVSS 3.1 4.0/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-770

Affected software

No affected versions have been published.

Timeline

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

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