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Telerik Report Server

Release History

Progress® Telerik® Report Server R3 2020 SP1 (

October 21, 2020

Add Visual Studio Template for the Web Report Designer

  • The web report designer can now be added to ASP.NET Core 3+ and ASP.NET projects using a Visual Studio item template.

Web Service Data Source

  • Two step authentication request fails when TokenPath is not set

Web Designer

  • CSV data source's field and record separators do not allow multi-select
  • Property editors of input fields are not updated on change from the design surface
  • ServiceUrl value without a trailing slash causes the designer to hang
  • The error message shown when a datasource fails to connect to a database, is not descriptive.
  • An error occurs when the WebServiceDataSource.ServiceUrl contains inline parameters
  • Cannot add a second WebService data source that has a request header name which is already used by a previously declared WebService data source
  • The DataSource Wizards' Preview page is not updated when the configuration data is changed


  • PictureBox does not support URLs longer than 250 characters

Excel Rendering

  • PictureBox that has Style.BackgroundImage set and doesn't have Value set causes exception when rendering in XLS and XLSX formats

PDF Rendering

  • Graphic primitives are rendered with incorrect LineCap and LineJoin properties.
  • PictureBox with SVG contents is rendered in PDF documents using raster bitmap rather than vector primitives


  • An attacker can replace an XSS payload instead of a session identifier
  • Report Server is installed with 'compilation debug' set to 'true' in the web.config
  • The REST Service of the Report Server returns Error Stack Traces in the responses
  • User with restricted categories access sees all categories when filtering by Category

Telerik Report Server

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