medium4.3
CVE-2026-24097
Improper permission enforcement in Checkmk versions 2.4.0 before 2.4.0p23, 2.3.0 before 2.3.0p43, and 2.2.0 (EOL) allows authenticated users to enumerate exist…
Impact
Improper permission enforcement in Checkmk versions 2.4.0 before 2.4.0p23, 2.3.0 before 2.3.0p43, and 2.2.0 (EOL) allows authenticated users to enumerate existing hosts by observing different HTTP response codes in agent-receiver/register_existing endpoint, which could lead to information disclosure.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Checkmk | Checkmk | Versions 2.2.0, 2.3.0, 2.4.0 |