Drupal Core Remote Code Execution Vulnerability

In Drupal Core, some field types do not properly sanitize data from non-form sources. This can lead to arbitrary PHP code execution in some cases.

Published 13 Sep 2026Updated 13 Sep 20266 sources
CVSS 8.1 ✓ VERIFIED REFERENCE△ CISA KEV

What happened

In Drupal Core, some field types do not properly sanitize data from non-form sources. This can lead to arbitrary PHP code execution in some cases.

Affected versions

Core: See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

  • Review the original advisory and validate affected versions.
  • Apply vendor-provided updates or mitigations when available.

Public PoC references