Werk #20084: Reports no longer show Python stack traces for elements that fail to render

Component

Reporting & availability

Title

Reports no longer show Python stack traces for elements that fail to render

Date

Jul 31, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p11	Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p36 Not yet released	Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

When a content element of a report could not be rendered, Checkmk replaced that element in the generated PDF with the complete Python stack trace of the underlying error.

A broken element is now replaced by a short error block that names the element type and the reason it failed. The full stack trace is written to var/log/web.log instead.

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