Skip to content
CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-24097

Authenticated Host Enumeration via Observable Response Discrepancy on Agent Register Existing Endpoint

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Checkmk

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Checkmk GmbH Checkmk

Default version status: unaffected

  • 2.4.0 to < 2.4.0p23affected
  • 2.3.0 to < 2.3.0p43affected
  • 2.2.0affected

References