Security Advisory
CVE-2026-15937
N/A
UNKNOWN
Vulnerability Description
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 own root certificate.
Published Date
September 4, 2026
Official Source
NIST NVD Advisory