Allocation of Resources Without Limits or Throttling Affecting rust-wasmtime package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.15% (5th percentile)

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  • Snyk IDSNYK-ECHOLATEST-RUSTWASMTIME-21884841
  • published30 Oct 2026
  • disclosed29 Oct 2026

Introduced: 29 Oct 2026

NewCVE-2026-119134  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest rust-wasmtime.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust-wasmtime package and not the rust-wasmtime package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 caps component-model resource handle tables only per component instance and does not charge handle allocations to any ResourceLimiter or StoreLimits. A malicious guest can repeatedly call resource.new and instantiate sub-components to exceed the per-instance cap many times over, causing unbounded host memory growth.

CVSS Base Scores

version 3.1