CVE-2026-15937 Agent receiver certificate confusion allows authentication with a certificate issued for another endpoint

Improper certificate validation in Checkmk 2.5.0p10 allows a relay and a push agent that share the same UUID to reuse each other's mTLS certificate to authenticate against agent receiver endpoints in either direction, because the endpoints do not verify that the certificate was issued by their ow...

CVE-2026-15937

Checkmk versions prior to 2.5.0p10 contain an improper certificate validation flaw in agent receiver endpoints . The endpoints fail to verify that a presented mTLS certificate was issued by their own root certificate. As a result, a relay and a push agent that share the same UUID can reuse each o...

EUVD-2026-70973

Improper certificate validation in Checkmk 2.5.0p10 allows a relay and a push agent that share the same UUID to reuse each other's mTLS certificate to authenticate against agent receiver endpoints in either direction, because the endpoints do not verify that the certificate was issued by their ow...

CVE-2026-15937: Improper Certificate Validation

Improper certificate validation in Checkmk 2.5.0p10 allows a relay and a push agent that share the same UUID to reuse each other's mTLS certificate to authenticate against agent receiver endpoints in either direction, because the endpoints do not verify that the certificate was issued by their ow...

PT-2026-85434

Improper certificate validation in Checkmk 2.5.0p10 allows a relay and a push agent that share the same UUID to reuse each other's mTLS certificate to authenticate against agent receiver endpoints in either direction, because the endpoints do not verify that the certificate was issued by their ow...

Linux Distros Unpatched Vulnerability : CVE-2026-17548

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Missing authorization in Checkmk 2.5.0p12, 2.4.0p36, 2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view...

Linux Distros Unpatched Vulnerability : CVE-2026-15576

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper authentication in the agent receiver of Checkmk 2.5.0p10 allows an unauthenticated remote attacker to bypass mutual TLS client certificate verification...

CVE-2026-17548

Missing authorization in Checkmk 2.5.0p12, 2.4.0p36, 2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results...

UBUNTU-CVE-2026-17548

Missing authorization in Checkmk 2.5.0p12, 2.4.0p36, 2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results...

CVE-2026-17548

Missing authorization in Checkmk 2.5.0p12, 2.4.0p36, 2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results...

CVE-2026-17548 Missing authorization for viewing background jobs

Missing authorization in Checkmk 2.5.0p12, 2.4.0p36, 2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results...

CVE-2026-17548

Checkmk , a network monitoring platform, suffers from a missing authorization flaw that allows an authenticated user who knows the ID of a background job to view that job's status and results. The vulnerability affects versions <2.5.0p12, <2.4.0p36,

EUVD-2026-65327

Missing authorization in Checkmk 2.5.0p12, 2.4.0p36, 2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results...

CVE-2026-17548 Missing authorization for viewing background jobs

Missing authorization in Checkmk 2.5.0p12, 2.4.0p36, 2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results...

CVE-2026-17548

Missing authorization in Checkmk 2.5.0p12, 2.4.0p36, 2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results...

PT-2026-81216

Missing authorization in Checkmk 2.5.0p12, 2.4.0p36, 2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results...

CVE-2026-17548: Missing Authorization

Missing authorization in Checkmk 2.5.0p12, 2.4.0p36, 2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results...

CVE-2026-15576

Improper authentication in the agent receiver of Checkmk 2.5.0p10 allows an unauthenticated remote attacker to bypass mutual TLS client certificate verification of relay endpoints by supplying a fixed placeholder identity in the request URL, resulting in limited impact on integrity and...

UBUNTU-CVE-2026-15576

Improper authentication in the agent receiver of Checkmk 2.5.0p10 allows an unauthenticated remote attacker to bypass mutual TLS client certificate verification of relay endpoints by supplying a fixed placeholder identity in the request URL, resulting in limited impact on integrity and...

CVE-2026-15576

Improper authentication in the agent receiver of Checkmk 2.5.0p10 allows an unauthenticated remote attacker to bypass mutual TLS client certificate verification of relay endpoints by supplying a fixed placeholder identity in the request URL, resulting in limited impact on integrity and...