Brinztech Alert: Database of Drupal is Leaked

Dark Web News Analysis

A threat actor on a known cybercrime forum is claiming to have leaked a large database that they allege is related to Drupal, the popular open-source content management system. According to the seller’s post, the data originates from a breach of a third-party system that occurred in September 2025. The database purportedly contains over 1.7 million lines of data, including approximately 465,000 unique email addresses and 590,000 unique phone numbers of Drupal users.

This claim, if true, represents a significant supply chain security incident for the entire Drupal ecosystem. A database of developers, site administrators, and contributors to a major web platform is a powerful tool for malicious actors. It can be used to launch highly effective and personalized phishing campaigns, conduct widespread “credential stuffing” attacks, and gather intelligence for more sophisticated attacks against the thousands of businesses and government agencies that rely on the Drupal platform.

Key Cybersecurity Insights

This alleged data breach presents a critical and widespread supply chain threat:

• A Massive Supply Chain Threat to the Drupal Ecosystem: The primary and most severe risk is the potential for follow-on attacks against the thousands of organizations that use Drupal. A list of developers and administrators is a goldmine for attackers looking to compromise websites built on the platform.
• A Goldmine for Credential Stuffing and Phishing: The list of nearly half a million unique email addresses of technically-savvy Drupal users is a prime target list for credential stuffing. Attackers will use this to try and take over accounts on other platforms like GitHub, hosting providers, and corporate systems.
• Highlighting Critical Third-Party Risk: The claim that the breach originated from a third-party system is a crucial detail. It underscores that the security of a major project like Drupal depends not just on its own core code but on the security of its entire ecosystem of vendors, partners, and integrated services.

Mitigation Strategies

In response to a threat of this nature, the Drupal community and its users must be vigilant:

• Launch an Immediate Investigation by the Drupal Security Team: The official Drupal Security Team must immediately launch an investigation to verify this claim, analyze any available data, and work to identify the compromised third-party system.
• Issue a Proactive Alert to the Entire Drupal Community: A widespread security alert should be issued through official Drupal channels. All Drupal users, from site administrators to developers, must be warned about the high risk of targeted phishing attacks that may use their association with Drupal to appear legitimate.
• Mandate Multi-Factor Authentication (MFA): The single most effective defense against the use of stolen credentials is MFA. All Drupal users should be strongly urged to enable Multi-Factor Authentication on their Drupal.org accounts, as well as on their GitHub accounts and any other critical services.

Secure Your Organization with Brinztech As a cybersecurity provider, we can protect your business from the threats discussed here. Contact us to learn more about our services.

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