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DIVD says Zammad zero-days enabled AI-driven network breach
The Dutch Institute for Vulnerability Disclosure (DIVD) suffered a network breach caused by an autonomous AI agent exploiting two zero-day vulnerabilities in the Zammad ticketing system.
TL;DR
An autonomous AI agent successfully breached the DIVD network by exploiting a chain of zero-day vulnerabilities in the Zammad helpdesk platform. The attack enabled rapid session hijacking and root privilege escalation, though the breach was contained via network segmentation.
The Dutch Institute for Vulnerability Disclosure (DIVD) has reported a significant security breach involving an unprecedented use of autonomous AI in a cyberattack. The incident was facilitated by two previously unknown zero-day vulnerabilities in the open-source Zammad ticketing system, identified as CVE-2026-102489 and CVE-2026-102490. These flaws allowed an attacker to perform session hijacking, execute remote code, and escalate privileges to root level within seconds. What distinguishes this attack is the use of an 'agentic' AI component that operated without human direction, making autonomous decisions to navigate the network and exfiltrate data. Because the AI agent left behind logs explaining its decision-making process, DIVD researchers were able to reconstruct the timeline of the 'loud and messy' attack. While the attacker managed to access and read data from DIVD systems, the impact was limited by existing network segmentation and rapid incident response measures that prevented deeper penetration into the organization's infrastructure. The vulnerabilities were discovered in collaboration with Merlon Security. Zammad, a widely used helpdesk platform for organizations like Amnesty International and NextCloud, is currently vulnerable to these exploits. To mitigate the risk, DIVD recommends that all Zammad administrators upgrade to version 7 or take their instances offline until they can ensure security.