An out-of-bounds read vulnerability in the Qt Framework CBOR parsing functionality (QCborValue::fromCbor()) of the Qt Core module has been discovered and has been assigned the CVE id CVE-2026-107157.

Affected versions: from Qt 5.12.0 to Qt 6.8.8, from Qt 6.9.0 to Qt 6.11.2 (64-bit platforms only)

Impact: Processing specially crafted input through the affected API may cause the application to crash and could potentially lead to information disclosure.

CVSS 4.0 Score: 2.0 / LOW

Vector String: 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/RE:L/U:Amber

Mitigation: Use the QByteArray overload of QCborValue::fromCbor() instead of the overloads that take a pointer and a size.…