CRLF Injection Affecting undici package, versions >=2.0.0 <5.19.1


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.16% (54th percentile)

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  • Snyk IDSNYK-JS-UNDICI-3323844
  • published17 Feb 2023
  • disclosed16 Feb 2023
  • creditZhipeng Zhang

Introduced: 16 Feb 2023

CVE-2023-23936  (opens in a new tab)
CWE-93  (opens in a new tab)

How to fix?

Upgrade undici to version 5.19.1 or higher.

Overview

undici is an An HTTP/1.1 client, written from scratch for Node.js

Affected versions of this package are vulnerable to CRLF Injection due to missing protection for the host HTTP header.

Workaround

Users who are unable to upgrade to the fixed version should sanitize the headers.host string before passing to undici.

CVSS Scores

version 3.1