CVE-2022-24775: Drupal

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

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.

Affected products

• Drupal Drupal: from 8.0.0, before 9.2.16 (fixed in 9.2.16); from 9.3.0, before 9.3.9 (fixed in 9.3.9)
• Guzzlephp Psr-7: before 1.8.4 (fixed in 1.8.4); from 2.0.0, before 2.1.1 (fixed in 2.1.1)

Published 2022-03-21. Last modified 2026-06-17.