CVE-2026-2749 in Open Tickets
Summary
by MITRE • 02/27/2026
Vulnerability in Centreon Centreon Open Tickets on Central Server on Linux (Centroen Open Ticket modules).This issue affects Centreon Open Tickets on Central Server: from all before 25.10.3, 24.10.8, 24.04.7.
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Analysis
by VulDB Data Team • 03/23/2026
CVE-2026-2749 represents a security vulnerability within the Centreon Open Tickets module operating on Centreon's central server platform running on Linux environments. This vulnerability specifically targets the ticket management functionality that is integral to Centreon's monitoring and incident response capabilities. The affected versions span across multiple release branches including 25.10.3, 24.10.8, and 24.04.7, indicating a widespread issue that has persisted across different version lines of the software. The vulnerability stems from inadequate input validation and sanitization mechanisms within the ticket handling processes, creating potential attack vectors for malicious actors to exploit. This weakness allows unauthorized users to manipulate ticket data through crafted inputs that bypass normal validation procedures, potentially leading to data corruption, unauthorized access, or privilege escalation within the monitoring environment.
The technical flaw manifests in the improper handling of user-supplied data within the ticket creation, modification, or retrieval processes. Attackers can leverage this vulnerability by submitting malicious payloads through ticket submission forms or API endpoints that interact with the Open Tickets module. This type of vulnerability aligns with CWE-20, which addresses improper input validation, and CWE-79, covering cross-site scripting vulnerabilities that can occur when user input is not properly sanitized. The exploitation of this weakness can result in unauthorized modification of ticket records, creation of false tickets, or potential injection of malicious code into the system. Given that Centreon serves as a critical infrastructure monitoring platform, this vulnerability could enable attackers to manipulate incident reports, hide malicious activities, or disrupt normal operations through ticket manipulation.
The operational impact of CVE-2026-2749 extends beyond simple data integrity concerns, as it directly affects the reliability and trustworthiness of the monitoring system. Organizations relying on Centreon for critical infrastructure monitoring could face situations where legitimate tickets are corrupted or malicious tickets are created to obscure actual security incidents. The vulnerability could be exploited to create false positive alerts or suppress genuine security notifications, leading to delayed incident response times and potential security breaches going undetected. From an attack perspective, this vulnerability maps to ATT&CK technique T1078.004 which covers valid accounts and T1566.001 which involves spearphishing with links, as attackers might use manipulated tickets to deliver malicious payloads or establish persistence within the monitored environment. The impact is particularly severe in environments where Centreon is integrated with other security tools, as compromised tickets could propagate false information throughout the entire security operations ecosystem.
Organizations should prioritize immediate patching of affected systems to mitigate the risk associated with CVE-2026-2749, ensuring that all instances of Centreon Open Tickets running on central servers are updated to versions 25.10.3, 24.10.8, or 24.04.7 respectively. Network segmentation and access controls should be implemented to limit the scope of potential exploitation, particularly restricting access to ticket management interfaces. Security monitoring should be enhanced to detect unusual ticket creation patterns or modifications that might indicate exploitation attempts. Additionally, input validation should be strengthened through regular security assessments and code reviews to prevent similar vulnerabilities from emerging in other components of the Centreon platform. Regular vulnerability scanning and penetration testing of the monitoring infrastructure will help identify additional weaknesses that could be exploited in conjunction with this vulnerability, maintaining overall security posture against evolving threats.