CVE-2024-55638: Drupal

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

Deserialization of Untrusted Data vulnerability in Drupal Core allows Object Injection.This issue affects Drupal Core: from 7.0 before 7.102, from 8.0.0 before 10.2.11, from 10.3.0 before 10.3.9. Drupal core contains a chain of methods that is exploitable when an insecure deserialization vulnerability exists on the site. This so-called gadget chain presents no direct threat but is a vector that can be used to achieve remote code execution if the application deserializes untrusted data due to another vulnerability.

Affected products

• Drupal Drupal: from 7.0, before 7.102 (fixed in 7.102); from 8.0.0, before 10.2.11 (fixed in 10.2.11); from 10.3.0, before 10.3.9 (fixed in 10.3.9)

Published 2024-12-10. Last modified 2026-06-17.