Vulnerability DatabaseCVE-2026-78253
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2026-78253
Published:September 23, 2026
Updated:October 11, 2026
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.
Affected Packages
qt6-main (CONDA):
Affected version(s) >=6.9.0 <6.11.2
Fix Suggestion:
Update to version 6.11.2
https://github.com/qt/qtbase.git (GITHUB):
Affected version(s) >=v6.9.0 <v6.11.2
Fix Suggestion:
Update to version v6.11.2
Related Resources (2)
https://codereview.qt-project.org/c/qt/qtbase/+/754345
https://nvd.nist.gov/vuln/detail/CVE-2026-78253
Do you need more information?
Contact Us
CVSS v4
Base Score:
2.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Uncontrolled Recursion
CWE-674
EPSS
Base Score:
0.25