CVE-2026-6366: Drupal core allows Object Injection

May 20, 2026 (updated June 5, 2026)

Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection.

This issue affects Drupal core: from 8.0.0 before 10.5.9, from 10.6.0 before 10.6.7, from 11.0.0 before 11.2.11, from 11.3.0 before 11.3.7.

References

github.com/advisories/GHSA-xmjc-63pr-2mpg
nvd.nist.gov/vuln/detail/CVE-2026-6366
www.drupal.org/sa-core-2026-002

Code Behaviors & Features

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