NetSight
medium5.3

CVE-2026-15937

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 authent…

Impact

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.

Affected products

VendorProductAffected versions
CheckmkCheckmk
before 2.5.0p10

Versions were read from the advisory text. No structured product data has been published for this record yet.

Weakness classification

References