CVE-2026-114369 · Runtime
NO FIX YET
The Qt Framework's WebSockets module has a flaw in its QWebSocket and QWebSocketServer classes that can exhaust resources. An attacker who can reach a Qt WebSocket endpoint can make the application consume excessive resources.
first public Nov 12, 2026 · 1 source
Check it with your coding agent
It reads this page and tells you if your code or app is affected.
Applications built with the Qt WebSockets module that accept WebSocket connections, particularly servers using QWebSocketServer. Applications that only act as WebSocket clients or do not use the Qt WebSockets module are likely not affected. The sources do not say which Qt versions are affected.
Not affected if no-websocket-server, not-using-qt-websockets
Who cares c++, qt, qt-websockets
Unknown from the sources.
No fix yet, per the sources.
Resource exhaustion vulnerability in the Qt Framework QWebSocket and QWebSocketServer classes of the Qt WebSockets module
This page as .md · .json · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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:A/V:X/RE:L/U:Clear
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
Are you affected?
Ask from here. InfraStack checks the affected versions against your stack and answers in your inbox.
InfraStack checks the affected versions against your stack and answers in Slack, with the evidence and the fix.
InfraStack checks it against your stack and answers on your report, with the evidence and the fix.