CVE-2026-2750 Overview
CVE-2026-2750 is an Improper Input Validation vulnerability affecting Centreon Open Tickets modules on the Central Server running Linux. This vulnerability allows attackers with high privileges to potentially compromise the confidentiality, integrity, and availability of systems through network-based attacks.
Critical Impact
This Improper Input Validation vulnerability in Centreon Open Tickets could allow privileged attackers to execute malicious operations with significant impact extending beyond the vulnerable component, affecting connected systems and infrastructure.
Affected Products
- Centreon Open Tickets on Central Server versions before 25.10
- Centreon Open Tickets on Central Server version 24.10
- Centreon Open Tickets on Central Server version 24.04
Discovery Timeline
- 2026-02-27 - CVE CVE-2026-2750 published to NVD
- 2026-03-02 - Last updated in NVD database
Technical Details for CVE-2026-2750
Vulnerability Analysis
This vulnerability stems from improper input validation (CWE-20) within the Centreon Open Tickets modules. The flaw allows authenticated users with high-level privileges to submit malicious input that is not properly sanitized or validated by the application. Despite requiring elevated privileges to exploit, the vulnerability has a changed scope, meaning successful exploitation can impact resources beyond the vulnerable component's security authority.
The attack can be conducted remotely over the network without requiring user interaction. Once exploited, an attacker can achieve high impact across all three security dimensions: confidentiality, integrity, and availability of the affected system and potentially connected infrastructure.
Root Cause
The root cause is insufficient input validation in the Centreon Open Tickets modules. The application fails to properly validate, filter, or sanitize user-supplied input before processing it. This allows specially crafted input to bypass expected controls and potentially execute unintended operations within the application context.
Attack Vector
The attack vector is network-based, requiring no user interaction. An authenticated attacker with high privileges (such as an administrator account) can exploit this vulnerability by sending specially crafted requests to the vulnerable Centreon Open Tickets component. The changed scope indicates that successful exploitation can affect components outside the vulnerable module's security boundary.
The vulnerability affects the Centreon Open Tickets functionality, which is typically used for integrating monitoring alerts with ticketing systems. An attacker exploiting this flaw could potentially manipulate ticket data, access sensitive information, or disrupt monitoring operations.
Detection Methods for CVE-2026-2750
Indicators of Compromise
- Unusual or malformed requests targeting Centreon Open Tickets API endpoints or web interfaces
- Unexpected modifications to ticket configurations or integration settings
- Anomalous administrative actions in Centreon audit logs from privileged accounts
- Signs of lateral movement or privilege abuse originating from the Centreon Central Server
Detection Strategies
- Implement monitoring for suspicious input patterns in Centreon Open Tickets module requests
- Review Centreon application logs for failed validation attempts or error messages indicating malformed input
- Monitor network traffic for unusual payloads targeting the Centreon Central Server
- Audit administrative account activities for unexpected or unauthorized configuration changes
Monitoring Recommendations
- Enable verbose logging for the Centreon Open Tickets module to capture detailed request information
- Deploy network intrusion detection rules to identify potential exploitation attempts
- Implement file integrity monitoring on critical Centreon configuration files
- Establish baseline behaviors for administrative accounts and alert on deviations
How to Mitigate CVE-2026-2750
Immediate Actions Required
- Update Centreon Open Tickets to version 25.10 or later immediately
- Review and audit all privileged account access to the Centreon Central Server
- Implement network segmentation to limit access to the Centreon infrastructure
- Monitor for any signs of exploitation while patching is in progress
Patch Information
Centreon has released security updates to address this vulnerability. Organizations should upgrade to Centreon Open Tickets version 25.10 or later. For detailed patch information and upgrade instructions, refer to the Centreon Security Bulletin CVE-2026-2750.
Workarounds
- Restrict network access to the Centreon Central Server to trusted IP addresses only
- Implement additional authentication controls such as multi-factor authentication for administrative accounts
- Disable the Centreon Open Tickets module temporarily if not critical to operations
- Apply web application firewall rules to filter potentially malicious input patterns
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
