CVE-2022-35948
MEDIUMundici < 5.8.1 - CRLF Injection via Content-Type Header
Title source: llmDescription
undici is an HTTP/1.1 client, written from scratch for Node.js.`=< [email protected]` users are vulnerable to _CRLF Injection_ on headers when using unsanitized input as request headers, more specifically, inside the `content-type` header. Example: ``` import { request } from 'undici' const unsanitizedContentTypeInput = 'application/json\r\n\r\nGET /foo2 HTTP/1.1' await request('http://localhost:3000, { method: 'GET', headers: { 'content-type': unsanitizedContentTypeInput }, }) ``` The above snippet will perform two requests in a single `request` API call: 1) `http://localhost:3000/` 2) `http://localhost:3000/foo2` This issue was patched in Undici v5.8.1. Sanitize input when sending content-type headers using user input as a workaround.
References (3)
Core 3
Core References
Patch, Third Party Advisory
https://github.com/nodejs/undici/commit/66165d604fd0aee70a93ed5c44ad4cc2df395f80
Release Notes, Third Party Advisory
https://github.com/nodejs/undici/releases/tag/v5.8.2
Exploit, Third Party Advisory
https://github.com/nodejs/undici/security/advisories/GHSA-f772-66g8-q5h3
Scores
CVSS v3
5.3
EPSS
0.0120
EPSS Percentile
64.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-93
CWE-74
Status
published
Products (2)
nodejs/undici
< 5.8.2
npm/undici
0 - 5.8.2npm
Published
Aug 15, 2022
Tracked Since
Feb 18, 2026