CVE-2026-19395

Medium

Description

In Qt for MCUs, a Text element that displays styled text halts the device if an <img> tag in the text contains an attribute with an empty value. The text parser passes the empty value to an internal check that only accepts non-empty values. The check fails and reports an error, and the default error handler halts the device.

SeverityMedium
CVSS6.6
Exploit probability—
ProductQt for MCUs
PublishedOct 5, 2026
First seenOct 5, 2026

How to fix

Update
  • qt Qt for MCUs2.12.3 or later

Affected products

ProductAffected versionsFixed in
qt Qt for MCUs2.12.0 ≤ v < 2.12.32.12.3

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CVE-2026-19395 · Qt for MCUs · Dark Radar