CVE-2026-95620

medium

Description

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.

References

https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-95620:

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-108708

https://codereview.qt-project.org/c/qt/qtbase/+/759717

Details

Source: Mitre, NVD

Published: 2026-10-23

Updated: 2026-11-02

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

CVSS v4

Base Score: 5.9

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