Vulnerability DatabaseCVE-2026-95620
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2026-95620
Published:October 23, 2026
Updated:October 27, 2026
A use-after-free vulnerability in the Qt QNetworkAccessManager HTTP/2 client support of the Qt Network module allows a malicious or compromised HTTP/2 server to cause the client application to crash, affecting availability.
Affected Packages
https://github.com/qt/qtbase.git (GITHUB):
Affected version(s) >=v6.11.0-beta1 <v6.11.3
Fix Suggestion:
Update to version v6.11.3
Related Resources (2)
https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-95620:
https://codereview.qt-project.org/c/qt/qtbase/+/759717
Do you need more information?
Contact Us
CVSS v4
Base Score:
2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
ACTIVE
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:
5.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Use After Free
CWE-416
EPSS
Base Score:
0.23