VDB
DEBIAN-CVE-2025-23167
DEBIAN-CVE-2025-23167
PUBLISHED
CVSS 6.5 MEDIUM
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.
Risk Scores
CVSS 3.0
6.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | node-undici | 8.5.0+dfsg+~cs3.2.0-2, 8.9.0+dfsg+~cs3.2.0-1, 8.5.0+dfsg+~cs3.2.0-3 |
| Debian:12 | node-undici | 8.9.0+dfsg+~cs3.2.0-1, 8.5.0+dfsg+~cs3.2.0-1, 8.5.0+dfsg+~cs3.2.0-2 |
| Debian:14 | node-undici | 7.3.0+dfsg1+~cs24.12.11-2, 7.3.0+dfsg1+~cs24.12.11-1, 0 |
Timeline
- May 19, 2025 CVE Published
- Sep 1, 2026 CVE Updated