HTTP Request Smuggling Affecting nodejs/node package, versions [,20.19.2)
Threat Intelligence
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UNMANAGED-NODEJSNODE-14927388
- published14 Jan 2026
- disclosed13 May 2025
- creditkenballus
Introduced: 13 May 2025
CVE-2025-23167 (opens in a new tab)How to fix?
Upgrade nodejs/node to version 20.19.2 or higher.
Overview
Affected versions of this package are vulnerable to HTTP Request Smuggling in the llhttp implementation, when handing HTTP/1 headers terminated with \r\n\rX instead of the required \r\n\r\n. This allows attackers to bypass proxy-based access controls and submit unauthorized requests.