CVE-2026-95620

EUVD-2026-108708
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
QtCNA
2.1 LOW
NETWORK
HIGH
NONE
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/E:U/AU:N/R:U/RE:L/U:Green
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
qtqt
6.9.0 ≤
𝑥
< 6.11.3
CNA
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://codereview.qt-project.org/c/qt/qtbase/+/759717
https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-95620: