Description
guzzlehttp/psr7 is a PSR-7 HTTP message library. Versions prior to 1.8.4 and 2.1.1 are vulnerable to improper header parsing. An attacker could sneak in a new line character and pass untrusted values. The issue is patched in 1.8.4 and 2.1.1. There are currently no known workarounds.
References (4)
Core 4
Core References
Third Party Advisory x_refsource_confirm
https://github.com/guzzle/psr7/security/advisories/GHSA-q7rv-6hp3-vh96
Patch, Third Party Advisory x_refsource_misc
https://github.com/guzzle/psr7/pull/485/commits/e55afaa3fc138c89adf3b55a8ba20dc60d17f1f1
Patch, Third Party Advisory x_refsource_misc
https://github.com/guzzle/psr7/pull/486/commits/9a96d9db668b485361ed9de7b5bf1e54895df1dc
Patch, Third Party Advisory x_refsource_confirm
https://www.drupal.org/sa-core-2022-006
Scores
CVSS v3
7.5
EPSS
0.0093
EPSS Percentile
76.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-20
Status
published
Products (3)
drupal/drupal
8.0.0 - 9.2.16
guzzlehttp/psr7
0 - 1.8.4Packagist
guzzlephp/psr-7
< 1.8.4
Published
Mar 21, 2022
Tracked Since
Feb 18, 2026