HTTP Response Splitting Affecting guzzlehttp/psr7 package, versions <1.9.1 >=2.0.0, <2.4.5


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.3% (71st percentile)

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  • Snyk ID SNYK-PHP-GUZZLEHTTPPSR7-5426094
  • published 18 Apr 2023
  • disclosed 18 Apr 2023
  • credit TimWolla, GrahamCampbell

How to fix?

Upgrade guzzlehttp/psr7 to version 1.9.1, 2.4.5 or higher.

Overview

Affected versions of this package are vulnerable to HTTP Response Splitting due to improper header parsing, such that an attacker could sneak in a newline \n into both the header names and values.

This vulnerability is present due to an incomplete fix for CVE-2022-24775

References

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    High
  • Availability (A)
    None
Expand this section

NVD

7.5 high