Allocation of Resources Without Limits or Throttling Affecting undici package, versions >=7.17.0 <7.24.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JS-UNDICI-15518066
- published13 Mar 2026
- disclosed12 Mar 2026
- creditAdnan Jakati
Introduced: 12 Mar 2026
NewCVE-2026-2581 (opens in a new tab)How to fix?
Upgrade undici to version 7.24.0 or higher.
Overview
undici is an An HTTP/1.1 client, written from scratch for Node.js
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the deduplication-handler component when interceptors.deduplicate() is enabled. An attacker can cause excessive memory consumption and potential application termination by sending large or chunked responses along with concurrent identical requests from an untrusted endpoint.