CVE-2026-3471 Opening a window with {{javascript:alert()}} as URL causes crash in the Mattermost Desktop App

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in the Mattermost Desktop App which allows a malicious server owner to repeated crash the application via calling window.open'javascript:alert';. Mattermost Advisory ID: MMSA-2026-00...

CVE-2026-3471 Opening a window with {{javascript:alert()}} as URL causes crash in the Mattermost Desktop App

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in the Mattermost Desktop App which allows a malicious server owner to repeated crash the application via calling window.open'javascript:alert';. Mattermost Advisory ID: MMSA-2026-00...

CVE-2026-3471 Opening a window with {{javascript:alert()}} as URL causes crash in the Mattermost Desktop App

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in the Mattermost Desktop App which allows a malicious server owner to repeated crash the application via calling window.open'javascript:alert';. Mattermost Advisory ID: MMSA-2026-00...

CVE-2026-3471

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in the Mattermost Desktop App which allows a malicious server owner to repeated crash the application via calling window.open'javascript:alert';. Mattermost Advisory ID: MMSA-2026-00...

EUVD-2026-30757

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in the Mattermost Desktop App which allows a malicious server owner to repeated crash the application via calling window.open'javascript:alert';. Mattermost Advisory ID: MMSA-2026-00...

CVE-2026-4643 Calling window.close() from server-side content causes crash in the Mattermost Desktop App

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking window.close in the renderer context, leading to...

EUVD-2026-30758

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking window.close in the renderer context, leading to...

CVE-2026-4643

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking window.close in the renderer context, leading to...

CVE-2026-4643

Mattermost Desktop App versions ≤ 6.1, 6.0.1, and 5.4.13.0 are affected by a flaw where server-rendered content can invoke window.close() in the renderer context, causing the underlying application view to close and yielding a client‑level denial of service. Root cause: the app fails to prevent s...

CVE-2026-4643 Calling window.close() from server-side content causes crash in the Mattermost Desktop App

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking window.close in the renderer context, leading to...

CVE-2026-4643 Calling window.close() from server-side content causes crash in the Mattermost Desktop App

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking window.close in the renderer context, leading to...

PT-2026-41651

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in the Mattermost Desktop App which allows a malicious server owner to repeated crash the application via calling window.open'javascript:alert';. Mattermost Advisory ID: MMSA-2026-00...

PT-2026-41654

Mattermost Desktop App versions =6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking window.close in the renderer context, leading to...

Mattermost Desktop App 代码问题漏洞

The Mattermost Desktop App is a desktop application for message communication developed by the American company Mattermost. Versions 6.1, 6.0.1, and 5.4.13.0 of the Mattermost Desktop App have code vulnerabilities. These vulnerabilities stem from a failure to prevent servers from rendering conten...

Mattermost Desktop App 安全漏洞

The Mattermost Desktop App is a desktop application for message communication developed by the American company Mattermost. Versions 6.1, 6.0.1, and 5.4.13.0 of the Mattermost Desktop App have security vulnerabilities. These vulnerabilities stem from a failure to prevent invalid URLs from being...

[SECURITY] Fedora 43 Update: yelp-49.1-1.fc43

Yelp is the help browser for the GNOME desktop. It is designed to help you browse all the documentation on your system in one central tool, including traditional man pages, info pages and documentation written in DocBook...

[SECURITY] Fedora 43 Update: freerdp-3.26.0-4.fc43

The xfreerdp & wlfreerdp Remote Desktop Protocol RDP clients from the FreeR DP project. xfreerdp & wlfreerdp can connect to RDP servers such as Microsoft Windows machines, xrdp and VirtualBox...

Microsoft 365 Copilot < 19.2604.43111.0 Spoofing (CVE-2026-41614)

The Windows 'Microsoft 365 Copilot' app formerly known as 'Microsoft 365 Office' installed on the remote host is prior to 19.2604.43111.0. It is, therefore, affected by a spoofing vulnerability: - Improper access control in Microsoft 365 Copilot for Desktop allows an unauthorized attacker to...

Microsoft Power Automate for Desktop < 2.68.237.26118 Information Disclosure (May 2026)

The version of Microsoft Power Automate for desktop installed on the remote Windows host is prior to 2.68.237.26118. It is, therefore, affected by an information disclosure vulnerability: - Exposure of sensitive information to an unauthorized actor in Power Automate allows an authorized attacker ...

CVE-2026-44467

The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side. From 1.2581.0 to before 1.4304.0, Claude Desktop's SSH remote development feature verified only whether a hostname existed in /.ssh/knownhosts without comparing the server's...