CVE-2026-24413: Icinga has insecure permission of %ProgramData%\icinga2\var on Windows
Icinga 2 is an open source monitoring system. Starting in version 2.3.0 and prior to versions 2.13.14, 2.14.8, and 2.15.2, the Icinga 2 MSI did not set appropriate permissions for the %ProgramData%\icinga2\var folder on Windows. This resulted in the its contents - including the private key of the user and synced configuration - being readable by all local users. All installations on Windows are affected. Versions 2.13.14, 2.14.8, and 2.15.2 contains a fix. There are two possibilities to work around the issue without upgrading Icinga 2. Upgrade Icinga for Windows to at least version v1.13.4, v1.12.4, or v1.11.2. These version will automatically fix the ACLs for the Icinga 2 agent as well. Alternatively, manually update the ACL for the given folder C:\ProgramData\icinga2\var (and C:\Program Files\WindowsPowerShell\modules\icinga-powershell-framework\certificate to fix the issue for the Icinga for Windows as well) including every sub-folder and item to restrict access for general users, only allowing the Icinga service user and administrators access.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-24413?
CVE-2026-24413 is considered a significant security vulnerability due to the insecure permissions set on the %ProgramData%\icinga2\var folder.
How do I fix CVE-2026-24413?
To fix CVE-2026-24413, update Icinga 2 to versions 2.13.14, 2.14.8, or 2.15.2.
Which versions of Icinga 2 are affected by CVE-2026-24413?
CVE-2026-24413 affects Icinga 2 versions from 2.3.0 to prior versions 2.13.14, 2.14.8, and 2.15.2.
What are the consequences of CVE-2026-24413?
The insecure permissions in CVE-2026-24413 can lead to unauthorized access to sensitive data in the Icinga 2 monitoring system.
Is CVE-2026-24413 a remote vulnerability?
CVE-2026-24413 is not specifically a remote vulnerability but involves local permission issues that can be exploited by attackers with system access.