CVE catalog

CVE-2022-35948

node-undici: CVE-2022-35948

Severity: Medium · CVSS 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Published: Aug 9, 2022, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.35% · Oct 25, 2026

undici is an HTTP/1.1 client, written from scratch for Node.js.`=< undici@5.8.0` 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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	node-undici	sid	`8.12.2+dfsg+~cs3.2.3-2`	fixed
Debian	node-undici	forky	`8.10.2+dfsg+~cs3.2.2-1`	fixed
Debian	node-undici	trixie	`7.3.0+dfsg1+~cs24.12.11-1`	fixed
Debian	node-undici	bookworm	`5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4`	fixed
Debian	node-undici	bookworm-security	`5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	node-undici	source	sid	`5.8.2+dfsg1+~cs18.9.18.1-1`	not yet assigned	Not reported	Not reported
Debian	node-undici	source	forky	`5.8.2+dfsg1+~cs18.9.18.1-1`	not yet assigned	Not reported	Not reported
Debian	node-undici	source	trixie	`5.8.2+dfsg1+~cs18.9.18.1-1`	not yet assigned	Not reported	Not reported
Debian	node-undici	source	bookworm	`5.8.2+dfsg1+~cs18.9.18.1-1`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[node-llhttp]Fixed
Source package: [node-undici]
Details (4)
- 8.1.0~5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4 · all · bookworm
  Fixed · Fixed: 5.8.2+dfsg1+~cs18.9.18.1-1
  dsa · node-undici · debian · bookworm
- 8.1.0~5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4 · all · bookworm
  Fixed · Fixed: 5.8.2+dfsg1+~cs18.9.18.1-1
  dsa · node-undici · debian · bookworm
- 8.1.0~5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3 · all · bookworm-security
  Fixed · Fixed: 5.8.2+dfsg1+~cs18.9.18.1-1
  dsa · node-undici · debian · bookworm
- 8.1.0~5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3 · all · bookworm-security
  Fixed · Fixed: 5.8.2+dfsg1+~cs18.9.18.1-1
  dsa · node-undici · debian · bookworm
[node-undici]Fixed
Details (4)
- 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4 · all · bookworm
  Fixed · Fixed: 5.8.2+dfsg1+~cs18.9.18.1-1
  dsa · node-undici · debian · bookworm
- 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4 · all · bookworm
  Fixed · Fixed: 5.8.2+dfsg1+~cs18.9.18.1-1
  dsa · node-undici · debian · bookworm
- 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3 · all · bookworm-security
  Fixed · Fixed: 5.8.2+dfsg1+~cs18.9.18.1-1
  dsa · node-undici · debian · bookworm
- 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3 · all · bookworm-security
  Fixed · Fixed: 5.8.2+dfsg1+~cs18.9.18.1-1
  dsa · node-undici · debian · bookworm

Observed: Oct 23, 2026, 6:28:27 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]