CVE-2026-114366

NameCVE-2026-114366
DescriptionAn information disclosure vulnerability in the Qt Framework QWebSocket authentication handling of the Qt WebSockets module.
SourceCVE (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 PackageReleaseVersionStatus
qt6-websockets (PTS)bookworm6.4.2-1vulnerable
trixie6.8.2-3vulnerable
forky, sid6.11.2-2vulnerable
qtwebsockets-opensource-src (PTS)bookworm5.15.8-2vulnerable
trixie5.15.15-2vulnerable
forky, sid5.15.19-2vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qt6-websocketssource(unstable)(unfixed)
qtwebsockets-opensource-srcsource(unstable)(unfixed)

Notes

https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-114366
https://codereview.qt-project.org/c/qt/qtwebsockets/+/772273 (not yet public)

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