CVE-2026-24097

MEDIUM

Checkmk 2.4.0-2.4.0p22, 2.3.0-2.3.0p42 - Info Disclosure

Title source: llm
STIX 2.1

Description

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 (1)

Core 1
Core References

Scores

CVSS v3 4.3
EPSS 0.0024
EPSS Percentile 14.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-204
Status published
Products (1)
checkmk/checkmk 2.2.0 (50 CPE variants)
Published Mar 13, 2026
Tracked Since Mar 14, 2026