Drupal Core Flaw Exposes PostgreSQL Sites to RCE Attacks

| 2026-05-26 08:46 CRITICAL HIGH

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Executive Summary AI-generated

The US government has issued a directive to patch vulnerable Drupal servers, citing an active SQL injection vulnerability that could be exploited without authentication. The flaw was discovered by Google/Mandiant researcher Michael Maturi and is tracked as CVE-2026-9082 in the database abstraction API of Drupal 8. Over 670 unpatched installations have been exposed online, with most coming from North America and Europe. CISA advises all defenders to apply patches immediately, citing a Binding Operational Directive (BOD) that only applies to Federal Civilian Executive Branch agencies. The agency warns that attackers can exploit the vulnerability without authentication, allowing for arbitrary SQL injection on PostgreSQL-powered sites.

Technical Mitigations AI-generated

* Implement a secure coding practice: Ensure that developers and administrators follow best practices for writing secure code, such as validating user input, using prepared statements, and avoiding SQL injection vulnerabilities. * Use a web application firewall (WAF): Consider implementing a WAF to help detect and prevent common web attacks, including SQL injection. A well-configured WAF can significantly reduce the risk of exploitation of known vulnerabilities like CVE-2026-9082. * Regularly update and patch software: Keep all software applications up-to-date with the latest security patches, including Drupal Core and Microsoft Exchange Server. This will help prevent exploitation of known vulnerabilities before they are patched by attackers. * Implement input validation and sanitization: Ensure that user input is validated and sanitized to prevent SQL injection attacks. Use prepared statements or parameterized queries instead of directly concatenating user input into SQL code. * Use a secure database connection protocol (e.g., SSL/TLS): When connecting to databases, use a secure protocol like SSL/TLS to encrypt data in transit. This can help protect against eavesdropping and tampering attacks that could be used to inject malicious SQL commands.

Intelligence Metadata

Actors / Malware / CVEs / Campaigns

CVE-2026-9082

Target & Sectors

EUROPE NORTH_AMERICA government media

Incident Timeline

‎May 20

The U.S. CISA exploited a SQL injection vulnerability in Drupal Core, allowing unauthenticated attackers to compromise sites running PostgreSQL databases on May 20.

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vulnerability CVE-2026-9082

Drupal issued a highly critical security patch on May 20 for CVE-2026-9082 , a SQL injection vulnerability that allows unauthenticated attackers to compromise sites running PostgreSQL databases.

Security Affairs

organisation SQL

Drupal issued a highly critical security patch on May 20 for CVE-2026-9082 , a SQL injection vulnerability that allows unauthenticated attackers to compromise sites running PostgreSQL databases.

Security Affairs

‎May 21, 2026

Threat actors exploited a high-risk vulnerability in Drupal Core to gain unauthorized access and execute malicious code.

Click on any entity below to view its context and source!

tactic Privilege Escalation

 Ravie Lakshmanan  May 21, 2026 Web Security / Vulnerability Drupal has released security updates for a "highly critical" security vulnerability in Drupal Core that could be exploited by attackers to achieve remote code execution, privilege escalation, or information disclosure.

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