CVE-2026-101201

EUVD-2026-104838
A malformed header in the binary file fed to QBinaryJson::fromBinaryData() can cause undefined behaviour because of out-of-bounds read.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
QtCNA
4.3 MEDIUM
LOCAL
LOW
NONE
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/R:U/RE:L/U:Amber
Base Score
CVSS 3.x
EPSS Score
Percentile: 2.17%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
qtqt
5.0.0 ≤
𝑥
≤ 6.8.8
CNA
qtqt
6.9.0 ≤
𝑥
≤ 6.11.2
CNA
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://codereview.qt-project.org/c/qt/qt5compat/+/758925
https://codereview.qt-project.org/c/qt/qt5compat/+/759230
https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-101201