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Home - AdvisoriesPrint
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CERT-In Advisory CIAD-2026-0025

Multiple Vulnerabilities in Drupal Core

Original Issue Date: May 20, 2026

Severity Rating: Critical

Software Affected

  • Drupal 11.3.x 
  • Drupal 11.2.x 
  • Drupal 10.6.x 
  • Drupal 10.5.x

Unsupported, end-of-life and other Drupal versions may also be vulnerable.

Overview

Multiple critical security vulnerabilities have been identified in Drupal Core. The Drupal Security Team has announced that security updates will be released for supported Drupal versions and has warned that exploit code may become available within hours or days following public disclosure.

Target Audience:
Drupal administrators, web hosting teams, security teams, and developers managing Drupal-based applications.

Risk Assessment:
High risk of unauthorized access and rapid exploitation of vulnerable Drupal instances.

Impact Assessment:
May lead to website compromise, malicious code execution, data exposure, and full system compromise.

Description

Drupal has issued a public security advisory regarding undisclosed highly critical vulnerabilities affecting Drupal Core. Technical details of the vulnerabilities will be disclosed upon the release of security patches.

The advisory indicates a high probability of rapid exploitation following public disclosure. Internet-facing Drupal installations are particularly at risk.

Users and administrators are advised to update Drupal Core to the latest available security patch released by the Drupal Security Team and apply all recommended security updates immediately.

Solution

Apply appropriate fixes as mentioned in Drupal Security Advisory:
https://www.drupal.org/psa-2026-05-18

Vendor Information

Drupal
https://www.drupal.org/psa-2026-05-18

References

The Register
https://www.theregister.com/security/2026/05/19/drupal-warns-admins-to-brace-for-highly-critical-core-patch/5242728

CVE Name

CVE identifiers were not available at the time of publication.

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-22902657

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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