U.S. CISA adds a flaw in Drupal Core to its Known Exploited Vulnerabilities catalog
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2026-9082 | Actively Exploited SQL Injection in Drupal Core CVE-2026-9082 is a critical SQL injection flaw (CWE-89) in Drupal core caused by improper neutralization of special elements used in SQL commands, allowing user-controlled input to alter the queries the application executes. The CVSS vector (AV:N/AC:L/PR:N/UI:N) shows it is remotely exploitable over the network without authentication, special privileges, or user interaction. A successful attacker gains high-impact access to the database (read, modify, or disrupt data), and news reports indicate PostgreSQL-backed sites may additionally be exposed to remote code execution. It affects Drupal core from version 8.9.0 onward across all current major lines, with fixes in 10.4.10, 10.5.10, 10.6.9, 11.1.10, 11.2.12, and 11.3.10, meaning essentially all unpatched modern Drupal deployments are at risk. The flaw is confirmed under active attack: CISA added it to the KEV catalog on 2026-05-22 and headlines report it is already being exploited in the wild, while EPSS assigns an 87.9% 30-day exploitation probability (100th percentile); no public proof-of-concept is known yet. Do: Upgrade Drupal core immediately to the patched release for your branch: 10.4.10, 10.5.10, 10.6.9, 11.1.10, 11.2.12, or 11.3.10, or a later release as applicable, since the flaw is being actively exploited and carries an 87.9% EPSS. Prioritize internet-facing sites and deployments using a PostgreSQL database, which reports say can be pushed to remote code execution, and review web and database logs for signs of exploitation. Under the CISA KEV listing (added 2026-05-22), U.S. federal agencies must apply vendor mitigations per applicable BOD 22-01 guidance or discontinue use of the product if mitigations are unavailable. | 9.8 | 88% | KEV |
| masslikely hundreds of thousands to 1M+ sites worldwide (all modern Drupal core branches affected) |
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The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Drupal Core to its Known Exploited Vulnerabilities catalog.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in Microsoft Exchange Server, tracked as CVE-2026-9082 (CVSS score of 9.8), to its Known Exploited Vulnerabilities (KEV) catalog.
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. Exploitation attempts started almost immediately, and within 48 hours, security firms were tracking thousands of attacks in the wild.
The vulnerability sits in an API designed to sanitize database queries and prevent SQL injection. A flaw in that API means an attacker can send specially crafted requests and inject arbitrary SQL commands on sites using PostgreSQL. As Drupal put it in its advisory.
“A vulnerability in this API allows an attacker to send specially crafted requests, resulting in arbitrary SQL injection for sites using PostgreSQL databases. This can lead to information disclosure, and in some cases privilege escalation, remote code execution, or other attacks.” reads the advisory. “This vulnerability can be exploited by anonymous users.”
The result can range from information disclosure to privilege escalation and, in some configurations, remote code execution.
The advisory for CVE-2026-9082 was updated on May 22, two days after the patch released, with a detail that confirmed what many had already suspected:
“The risk score has been updated to reflect that exploit attempts are now being detected in the wild.” reads the updated advisory.
Imperva observed more than 15,000 exploitation attempts against nearly 6,000 Drupal sites in 65 countries within two days of disclosure. Nearly half of the attacks targeted gaming and financial services organizations, likely due to the high value of credentials and financial data.
“Since CVE-2026-9082 was released, Imperva has observed over 15,000 attack attempts targeting almost 6,000 individual sites across 65 countries. Attacks are primarily targeting Gaming and Financial Services sites so far, at collectively almost 50% of all attacks.” states Imperva. “This pattern suggests attackers and scanners are primarily attempting to identify exposed Drupal sites running vulnerable PostgreSQL-backed configurations. While the activity is currently dominated by reconnaissance and validation, the nature of the vulnerability means successful exploitation could quickly move from probing to data extraction or privilege escalation.”
According to Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities, FCEB agencies have to address the identified vulnerabilities by the due date to protect their networks against attacks exploiting the flaws in the catalog.
Experts also recommend that private organizations review the Catalog and address the vulnerabilities in their infrastructure.
CISA orders federal agencies to fix the vulnerability by May 27, 2026.
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(SecurityAffairs – hacking, US CISA Known Exploited Vulnerabilities catalog)
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