SuiteCRM anfällig für Remote Code Execution über Module Loader Package Scanner Bypass

The impact of CVE-2026-29103 is severe. An attacker, once authenticated as an administrator, can execute arbitrary code on the SuiteCRM server. This could lead to complete system compromise, including data exfiltration, malware installation, and denial of service. The ability to execute arbitrary commands bypasses standard security controls and allows for extensive lateral movement within the network if the SuiteCRM server has access to other systems. Given SuiteCRM's role as a CRM, sensitive customer data, financial records, and proprietary business information are all at risk. The patch bypass nature of this vulnerability makes it particularly concerning, as organizations that believed they were already protected by the previous fix remain vulnerable.

Organizations heavily reliant on SuiteCRM for customer relationship management are at significant risk. This includes businesses using SuiteCRM for sales, marketing, and support operations. Specifically, those who applied the patch for CVE-2024-49774 but have not upgraded to 8.9.3 are particularly vulnerable. Shared hosting environments running SuiteCRM are also at increased risk due to the potential for cross-tenant exploitation.

• linux / server:

journalctl -u suitecrm -f | grep -i "ModuleScanner.php"

• php:

find /var/www/suitecrm -name "ModuleScanner.php" -print

• generic web:

curl -I http://your-suitecrm-instance/suitecrm/modules/ModuleScanner/ModuleScanner.php | grep -i "PHP"

1. 2026-03-19Disclosure

   disclosure

2. 2026-03-19Patch

   patch

1. Reserviert2026-03-03
2. Veröffentlicht2026-03-19
3. Geändert2026-03-20
4. EPSS aktualisiert2026-03-27

The primary mitigation for CVE-2026-29103 is to immediately upgrade SuiteCRM to version 8.9.3 or later. If upgrading is not immediately feasible, consider implementing temporary workarounds. While a direct patch bypass, restricting administrator access and implementing strict input validation on any user-supplied data processed by ModuleScanner.php could reduce the attack surface. Web Application Firewalls (WAFs) configured to detect and block suspicious PHP code execution attempts might offer some protection, though bypassing WAF rules is often possible. Monitor SuiteCRM logs for unusual activity, particularly attempts to execute system commands. After upgrading, confirm the vulnerability is resolved by attempting to trigger the vulnerable code path and verifying that it no longer executes arbitrary commands.