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Advisories.
qt-group-plcCVE-2026-78253

Uncontrolled recursion in QXmlStreamReader::readElementText() in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted XML document.

Low2.3CVE-2026-78253 · Published Sep 23, 2026 · updated Sep 24, 2026

Source advisory

Affected versions

PackageAffectedFixed in
qt
Vendor
>= 5.0.0, <= 6.8.8No fix yet
>= 6.9.0, <= 6.11.1No fix yet
Details and references

Uncontrolled recursion in QXmlStreamReader::readElementText() in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted XML document.

CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:U/V:X/RE:L/U:Green
Severity from
no source yet
Weakness
CWE-674

More qt-group-plc advisories

All
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Sep 16QDomDocument XML parsing is vulnerable to a remotely-triggerable denial-of-service crash when processing untrusted input.
CVE-2026-19248High7.1no fix yet
Sep 11An out-of-bounds read in Qt NFC's language code length parsing allows a physically proximate attacker to cause a denial of service or limited memory disclosure via a crafted NFC tag.
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Sep 8Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase).
CVE-2026-11573High7.1fixed in qt 6.8.2

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