CISA Warns of Drupal Core SQL Injection Vulnerability Exploited in Attacks

CISA has issued an urgent alert regarding a critical SQL injection vulnerability in Drupal Core, tracked as CVE-2026-9082, which is now being actively exploited in real-world attacks.

The flaw, classified under CWE-89, affects Drupal’s database abstraction API and could allow attackers to execute malicious SQL queries through specially crafted requests.

According to the Cybersecurity and Infrastructure Security Agency (CISA), successful exploitation of this vulnerability can lead to privilege escalation and, in severe cases, remote code execution (RCE).

This makes the issue particularly dangerous for organizations that rely on Drupal for content management, especially those that expose web applications to the public internet.

The vulnerability was officially added to CISA’s Known Exploited Vulnerabilities (KEV) catalog on May 22, 2026, indicating confirmed exploitation activity.

Federal agencies and organizations are required to remediate the issue by May 27, 2026, under Binding Operational Directive (BOD) 22-01.

Drupal Core SQL Injection Vulnerability

The vulnerability resides in Drupal Core’s handling of database queries through its abstraction layer.

Improper input validation allows attackers to inject malicious SQL statements, potentially bypassing authentication controls or manipulating backend database operations.

Key risks include:

• Unauthorized access to sensitive data stored in Drupal databases.
• Privilege escalation from low-level user accounts to administrative control.
• Execution of arbitrary code on the underlying server in certain configurations.

Because Drupal powers a significant portion of enterprise and government websites, exploitation at scale could have a widespread impact.

While CISA has not confirmed whether this vulnerability is currently used in ransomware campaigns, the nature of SQL injection flaws makes them a common entry point for initial access brokers and threat actors.

Attackers can leverage this flaw to gain a foothold, deploy web shells, or pivot deeper into the network.

Security researchers warn that publicly exposed Drupal instances are at the highest risk, particularly those running outdated or unpatched versions of Drupal Core.

CISA strongly urges organizations to take immediate action to mitigate the risk. Recommended steps include:

• Apply security patches provided by the Drupal project without delay.
• Review and follow vendor-specific mitigation guidance.
• Monitor web server logs for suspicious or anomalous SQL query patterns.
• Implement web application firewalls (WAFs) to detect and block injection attempts.
• Follow BOD 22-01 guidelines for cloud-hosted environments.

If patching is not feasible, organizations should consider temporarily turning off affected services until mitigation measures are in place.

The active exploitation of CVE-2026-9082 underscores the ongoing risk posed by SQL injection vulnerabilities in widely used platforms such as Drupal.

Organizations must prioritize patching and proactive monitoring to defend against potential compromise.

 With a tight remediation deadline set by CISA, immediate action is essential to reduce exposure and prevent potential breaches.

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