Medium severityNVD Advisory· Published Sep 4, 2026· Updated Sep 8, 2026
CVE-2026-15937
CVE-2026-15937
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.
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Affected products
1Patches
Vulnerability mechanics
References
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