CVE-2025-64998

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

UBUNTU-CVE-2025-64998

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998 Session hijacking via exposed session signing secret in distributed Checkmk setups

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998 Session hijacking via exposed session signing secret in distributed Checkmk setups

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998

CVE-2025-64998 affects Checkmk versions prior to 2.4.0p23, 2.3.0p45, and 2.2.0. The issue is the exposure of the session signing secret in distributed Checkmk deployments with config sync enabled, enabling an administrator on a remote site to forge session cookies and hijack sessions on the centr...

PT-2026-27382

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

Checkmk 安全漏洞

Checkmk is an IT monitoring platform developed by Checkmk Corporation. Versions of Checkmk prior to 2.4.0p23, 2.3.0p45, and 2.2.0 contain security vulnerabilities. These vulnerabilities stem from the exposure of session signing keys, which could allow remote site administrators to forge session...

Linux Distros Unpatched Vulnerability : CVE-2026-24097

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Linux Distros Unpatched Vulnerability : CVE-2026-2859

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 existi...

EUVD-2026-11782

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...

EUVD-2026-11784

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...

CVE-2026-2859

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...

CVE-2026-2859

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...

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 existing hosts by observing different HTTP response codes in agent-receiver/registerexisting endpoint, which could lead to information disclosure...

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 existing hosts by observing different HTTP response codes in agent-receiver/registerexisting endpoint, which could lead to information disclosure...

CVE-2026-2859

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...

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 existing hosts by observing different HTTP response codes in agent-receiver/registerexisting endpoint, which could lead to information disclosure...

UBUNTU-CVE-2026-2859

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...