Description

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.

INFO

Published Date :

2025-05-19T01:25:08.454Z

Last Modified :

2025-05-27T18:31:36.494Z

Source :

hackerone
AFFECTED PRODUCTS

The following products are affected by CVE-2025-23167 vulnerability.

Vendors Products
Redhat
  • Enterprise Linux
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-23167.

URL Resource
https://nodejs.org/en/blog/vulnerability/may-2025-security-releases cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-23167 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-23167 cve-icon
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