CRLF Injection Affecting undici package, versions <5.8.0


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    0.17% (55th percentile)

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  • Snyk ID SNYK-JS-UNDICI-2953389
  • published 20 Jul 2022
  • disclosed 20 Jul 2022
  • credit Haxatron

How to fix?

Upgrade undici to version 5.8.0 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 in lib/core/request.js that allows HTTP requests to be injected via unexpected CRLF (\r\n) sequences in request path, method, and headers received from untrusted sources.

CVSS Scores

version 3.1
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Snyk

Recommended
5.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    None
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NVD

6.5 medium
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SUSE

5.3 medium