Werk #19682: Event Console MIBs: tolerate non-UTF-8 bytes in MIB files

Component	Event Console
Title	Event Console MIBs: tolerate non-UTF-8 bytes in MIB files
Date	Apr 23, 2026
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.6.0b1 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.5.0p1 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

When browsing the Event Console SNMP MIBs page, the Setup interface crashed with UnicodeDecodeError whenever a MIB file contained bytes that were not valid UTF-8 (for example Windows-1252 smart quotes that are common in vendor-supplied MIB files).

The MIB header parser now reads MIB files with errors="replace", so undecodable bytes no longer abort parsing. The header regexes still extract the MIB name and organization from the surrounding ASCII content.

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