Disig

We have a clear vision for our future

Important update of the Web Signer application

11. May 2026

websigner2

Dear users,

We would like to inform you that Mr. Marek Alakša, a security expert from Binary House, has identified a critical vulnerability in older versions of the Web Signer application (2.0.3 – 2.5.3) for the Windows, macOS and Linux operating systems.

The vulnerability has been fixed in the latest version – Web Signer 2.5.5.

The application will automatically prompt you to update shortly.

You can also start the update manually – right-click the yellow Web Signer application icon displayed in the taskbar notification area (system tray) and select the “Check for updates” option from the context menu.

Updated installation packages are also available on our website:
https://download.disigcdn.sk/cdn/products/websigner2/download.html

We strongly recommend that all users update the application immediately.