Werk #16719: Prevent creating invalid labels

Component

REST API

Title

Prevent creating invalid labels

Date

Nov 27, 2024

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.4.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p22	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

Previously it was possible to create hosts with invalid label values containing one or more colons, for example

my_label: this:is:not:correct

This change implements a check when creating or editing hosts in the Rest API to prevent the use of invalid label values.