CVE-2026-100140lowCWE-190

CVE-2026-100140: low-severity vulnerability in qt

Integer overflow vulnerability in XML parsing functionality of Qt5Compat impacts Qt

Published

Follow this CVE+ Monitor Qt+ Monitor qt6-5compat

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

8Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 1.9epss 0.2%
An integer overflow vulnerability in the Qt XML parsing (Qt5Compat / QXmlSimpleReader) functionality of Qt.
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/R:U/U:Green
Affected products
qt · qt
Related CVEs — qt

In the same product, most dangerous first.

CVE-2026-76151MEDIUMOut-of-bounds read (buffer over-read) vulnerability in HTTP Cache-Control response header parsing impacts Qt Framework (QtNetwork module)EPSS 0.7%CVE-2026-16762HIGHDenial-of-service vulnerability in the Qt Core QXmlStream parser (QXmlStreamReader) impacts QtEPSS 0.5%CVE-2026-105946MEDIUMOut-of-bounds read vulnerability in NTLM authentication handling impacts QtEPSS 0.5%CVE-2026-78253LOWDenial-of-service (stack-exhaustion) vulnerability in QXmlStreamReader::readElementText() impacts QtEPSS 0.4%CVE-2026-19248HIGHUnbounded recursion vulnerability in the QDomNode destructor of Qt XML impacts QtEPSS 0.4%CVE-2026-8168HIGHDenial-of-service vulnerability in the SVG parser and renderer impacts QtEPSS 0.4%