Allocation of Resources Without Limits or Throttling Affecting wasmtime package, versions <24.0.6>=25.0.0 <36.0.6>=37.0.0 <40.0.4>=41.0.0 <41.0.4
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- published25 Feb 2026
- disclosed24 Feb 2026
- creditAlex Crichton
Introduced: 24 Feb 2026
NewCVE-2026-27572 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade wasmtime to version 24.0.6, 36.0.6, 40.0.4, 41.0.4 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the wasi:http/types.fields resource when excessive fields are added. An attacker can cause the process to panic and disrupt service by triggering the underlying data structure to exceed its capacity.