CVE-2025-23167 (GCVE-0-2025-23167)
Vulnerability from cvelistv5
Published
2025-05-19 01:25
Modified
2025-05-27 18:31
Severity ?
6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
A flaw in Node.js 20's HTTP parser allows improper termination of HTTP/1 headers using `\r\n\rX` instead of the required `\r\n\r\n`. This inconsistency enables request smuggling, allowing attackers to bypass proxy-based access controls and submit unauthorized requests. The issue was resolved by upgrading `llhttp` to version 9, which enforces correct header termination. Impact: * This vulnerability affects only Node.js 20.x users prior to the `llhttp` v9 upgrade.
References
support@hackerone.comhttps://nodejs.org/en/blog/vulnerability/may-2025-security-releases
Impacted products
Vendor Product Version
nodejs node Version: 4.0   ≤
Version: 5.0   ≤
Version: 6.0   ≤
Version: 7.0   ≤
Version: 8.0   ≤
Version: 9.0   ≤
Version: 10.0   ≤
Version: 11.0   ≤
Version: 12.0   ≤
Version: 13.0   ≤
Version: 14.0   ≤
Version: 15.0   ≤
Version: 16.0   ≤
Version: 17.0   ≤
Version: 18.0   ≤
Version: 19.0   ≤
Version: 20.0   ≤ 20.19.1
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