Unrated
Authenticated Host Enumeration via Observable Response Discrepancy on Agent Register Existing Endpoint
CVE-2026-24097
First seen on SecPulse
Original description The description as published by the source.
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.
References
- advisory github.com
- advisory nvd.nist.gov
- web checkmk.com