CVE-2026-107157

EUVD-2026-109801
Specially crafted CBOR input passed to QCborValue::fromCbor() in Qt Core can cause an out-of-bounds read, which may crash the application and could expose information.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
QtCNA
2 LOW
LOCAL
HIGH
NONE
CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:L/U:Amber
Base Score
CVSS 3.x
EPSS Score
Percentile: 3.86%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
qtqt
5.12.0 ≤
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/qtbase/+/745719
https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-107157: