Observed Signal · Nov 3, 2026 · Market Signal · Source: Qt · Impact: 2/5
Security advisory: CVE-2026-103653: Out-of-bounds read vulnerability in CoAP message parsing impacts Qt CoAP
New security advisories published for Qt CoAP and Qt5Compat, along with a webinar series promotion and a link to Qt Bridges.
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Qt Blog: New Releases and Security Advisory
New blog posts include a security advisory for CVE-2026-11573, Qt Design Studio 4.8.3 release, Qt AI Assistant retirement, Qt Extension 1.16.0 for VS Code, and Qt Safe Renderer 2.2.0 release and certification.
New security advisories published for Qt vulnerabilities
Qt published multiple new security advisories on Oct 30, 2026, including CVE-2026-111487 (out-of-bounds write in Qt3D assimp plugin), CVE-2026-107457 (memory corruption in QMqttClient), and CVE-2026-105924 (NULL pointer dereference in QCborValue to JSON conversion).
Qt Blog: New Product Releases and Security Advisories
The Qt blog page has been updated with several new posts, including 'Canvas2D: New QML canvas element using Qt Canvas Painter', 'A Cross-Platform C# UI Framework via Qt’s Bridging Technology', 'QML and C# without C++: Qt Bridge for C# 0.4.0 Beta Released', 'Commercial LTS Qt 6.8.9 Released', and multiple security advisories. Additionally, a new banner promotes Qt World Summit 2026.
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