Werk #18990: Authority Key Identifier (AKI)

Component

Core & setup

Title

Authority Key Identifier (AKI)

Date

Jan 8, 2026

Level

Trivial Change

Class

New Feature

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.6.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.5.0b1	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.4.0p20	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

We have added support for the Authority Key Identifier (AKI) extension to our certificate generation logic. This X.509 extension provides a clearer link between a certificate and the specific key pair of the Certificate Authority (CA) that signed it, improving the reliability of certificate chain verification.

Every new certificate created within Checkmk will automatically include this property.

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