Vulnerabilities Drupal Patches Highly Critical Vulnerability Exposing Websites to Hacking CVE-2026-9082 can be exploited without authentication for information disclosure, privilege escalation, and remote code execution. By Eduard Kovacs | May 21, 2026 (6:58 AM ET) Flipboard Reddit Whatsapp Whatsapp Email Drupal has patched a highly critical vulnerability that could allow threat actors to hack websites powered by the open source content management system (CMS). The developers of the CMS had alerted users prior to the patch’s release that an exploit might be created within hours or days of disclosure. The vulnerability, tracked as CVE-2026-9082 and rated ‘highly critical’ with a NIST CMSS score of 20 out of 25, affects an API designed to ensure that database queries are sanitized to prevent SQL injection attacks. “A vulnerability in this API allows an attacker to send specially crafted requests, resulting in arbitrary SQL injection for sites using PostgreSQL databases,” Drupal explains. It warns that the flaw can be exploited without authentication to obtain information and in some cases for privilege escalation and remote code execution. Drupal powers hundreds of thousands of websites, but CVE-2026-9082 only affects sites that use PostgreSQL. Advertisement. Scroll to continue reading. Patches are available for Drupal versions 11.3, 11.2, 10.6, and 10.5.x. The latest updates also address ‘important’ vulnerabilities in Symfony and Twig that affect Drupal. “Depending on your site configuration and contrib modules, you may be vulnerable to one or more of these upstream issues, so updating these dependencies is highly recommended whether the SQL Injection vulnerability affects you or not,” Drupal recommends. Vulnerabilities are regularly patched in Drupal, but few of them are severe, and there hasn’t been a ‘highly critical’ flaw in years. There haven’t been any reports of new Drupal flaws being exploited in the wild since 2019 . In the years leading up to 2019, several vulnerabilities were exploited, including Drupalgeddon and Drupalgeddon2 , which were used to hack many websites. Related : Microsoft Patches Exploited UnDefend and RedSun Defender Zero-Days Related : Exploitation of Critical NGINX Vulnerability Begins Related: Anthropic Silently Patches Claude Code Sandbox Bypass Written By Eduard Kovacs Eduard Kovacs (@EduardKovacs) is senior managing editor at SecurityWeek. He worked as a high school IT teacher before starting a career in journalism in 2011. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering. 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