| Name | CVE-2026-101201 |
| Description | A malformed header in the binary file fed to QBinaryJson::fromBinaryData() can cause undefined behaviour because of out-of-bounds read. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qt6-5compat (PTS) | bookworm | 6.4.2-1 | vulnerable |
| trixie | 6.8.2-3 | vulnerable |
| forky, sid | 6.11.2-2 | vulnerable |
| qtbase-opensource-src (PTS) | bookworm | 5.15.8+dfsg-11+deb12u3 | vulnerable |
| trixie | 5.15.15+dfsg-6+deb13u1 | vulnerable |
| forky | 5.15.19+dfsg-5 | vulnerable |
| sid | 5.15.19+dfsg-6 | vulnerable |
| qtbase-opensource-src-gles (PTS) | bookworm | 5.15.8+dfsg-3 | vulnerable |
| trixie | 5.15.15+dfsg-2 | vulnerable |
| forky, sid | 5.15.19+dfsg-2 | vulnerable |
The information below is based on the following data on fixed versions.
Notes
https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-101201
https://github.com/qt/qt5compat/commit/721ed576391211ca53ecdaaecf6dd41df7bc962e
https://github.com/qt/qt5compat/commit/c0a495894d83a3c48055bd1e544f93147fc6ade1