Integer overflow in Qt

CVE-2026-100140

An integer overflow vulnerability in the Qt XML parsing (Qt5Compat / QXmlSimpleReader) functionality of Qt.

Vulnerability class: Integer Overflow

Published · last modified .

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

  • Qt — versions 6.12.0

Weakness classification (CWE)

References