CVE-2026-11573 PUBLISHED

QDomDocument::toByteArray() crashes when parsing svg file

Assigner: Qt
Reserved: 08.06.2026 Published: 08.09.2026 Updated: 08.09.2026

Uncontrolled recursion in Qt's QDomDocument serialization (QtXml) lets deeply nested untrusted XML crash the app via stack exhaustion (DoS only).

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Vendor	qt
Product	qt
Versions	Default: unaffected affected from 6.7.0 to 6.8.2 (excl.)