CVE-2026-24097 Authenticated Host Enumeration via Observable Response Discrepancy on Agent Register Existing Endpoint

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/registerexisting endpoint, which could lead to information disclosure...

CVE-2026-24097 Authenticated Host Enumeration via Observable Response Discrepancy on Agent Register Existing Endpoint

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/registerexisting endpoint, which could lead to information disclosure...

PT-2026-25168

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 disclosur...

CVE-2026-2859: Observable Response Discrepancy

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 unauthenticated users to enumerate existing hosts by observing different HTTP response codes in deployagent endpoint, which could lead to information disclosure...

PT-2026-25169

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 unauthenticated users to enumerate existing hosts by observing different HTTP response codes in deploy agent endpoint, which could lead to information disclosure...

Checkmk 安全漏洞

Checkmk is an IT monitoring platform developed by Checkmk Corporation. Versions of Checkmk prior to 2.4.0p23, 2.3.0p43, and 2.2.0 contain security vulnerabilities. These vulnerabilities stem from improper permission execution, allowing unauthorized users to enumerate existing hosts by observing...

CVE-2026-24097: Observable Response Discrepancy

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/registerexisting endpoint, which could lead to information disclosure...

Checkmk 安全漏洞

Checkmk is an IT monitoring platform developed by Checkmk Corporation. Versions of Checkmk prior to 2.4.0p23, 2.3.0p43, and 2.2.0 contain security vulnerabilities. These vulnerabilities stem from improper permission execution, which may lead to information leakage...

Linux Distros Unpatched Vulnerability : CVE-2026-3103

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A logic error in the removepassword function in Checkmk GmbH's Checkmk versions 2.4.0p23, 2.3.0p43, and 2.2.0 EOL allows a low-privileged user to cause data los...

CVE-2026-3103

A logic error in the removepassword function in Checkmk GmbH's Checkmk versions 2.4.0p23, 2.3.0p43, and 2.2.0 EOL allows a low-privileged user to cause data loss...

Linux Distros Unpatched Vulnerability : CVE-2025-64999

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper neutralization of input in Checkmk versions 2.4.0 before 2.4.0p22, and 2.3.0 before 2.3.0p43 allows an attacker that can manipulate a host's check outp...

EUVD-2026-9403

A logic error in the removepassword function in Checkmk GmbH's Checkmk versions 2.4.0p23, 2.3.0p43, and 2.2.0 EOL allows a low-privileged user to cause data loss...

CVE-2026-3103

A logic error in the removepassword function in Checkmk GmbH's Checkmk versions 2.4.0p23, 2.3.0p43, and 2.2.0 EOL allows a low-privileged user to cause data loss...

CVE-2026-3103

A logic error in the removepassword function in Checkmk GmbH's Checkmk versions 2.4.0p23, 2.3.0p43, and 2.2.0 EOL allows a low-privileged user to cause data loss...

UBUNTU-CVE-2026-3103

A logic error in the removepassword function in Checkmk GmbH's Checkmk versions 2.4.0p23, 2.3.0p43, and 2.2.0 EOL allows a low-privileged user to cause data loss...

CVE-2026-3103

Checkmk GmbH Checkmk is affected by CVE-2026-3103 due to a logic error in remove_password() in versions <2.4.0p23,

CVE-2026-3103 Deletion of passwords via RestApi

A logic error in the removepassword function in Checkmk GmbH's Checkmk versions 2.4.0p23, 2.3.0p43, and 2.2.0 EOL allows a low-privileged user to cause data loss...

CVE-2026-3103 Deletion of passwords via RestApi

A logic error in the removepassword function in Checkmk GmbH's Checkmk versions 2.4.0p23, 2.3.0p43, and 2.2.0 EOL allows a low-privileged user to cause data loss...

CVE-2026-3103

A logic error in the removepassword function in Checkmk GmbH's Checkmk versions 2.4.0p23, 2.3.0p43, and 2.2.0 EOL allows a low-privileged user to cause data loss...

CVE-2026-3103 Deletion of passwords via RestApi

A logic error in the removepassword function in Checkmk GmbH's Checkmk versions 2.4.0p23, 2.3.0p43, and 2.2.0 EOL allows a low-privileged user to cause data loss...