Quick answers
- Is CVE-2026-19395 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-19395 being exploited in the wild.
- How severe is CVE-2026-19395?
- Informational severity, published 5 October 2026.
- Which products and versions are affected?
- Qt Qt for MCUs.
- Is there a fix for CVE-2026-19395?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-19395 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-19395?
- Check whether you run Qt for MCUs. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A malformed img tag in styled text passed to a Text element triggers an error in the text parser's validation logic. The parser passes an empty attribute value to an internal check that requires non-empty values, causing the check to fail and invoke the default error handler, which halts the device. This is a denial-of-service condition affecting embedded deployments.
Affected products
- Qt Qt for MCUs