Unrated severityNVD Advisory· Published Jul 22, 2026· Updated Jul 22, 2026

RadAsyncUpload Client-State Decrypt-vs-Parse Oracle Vulnerability in Telerik UI for ASP.NET AJAX

CVE-2026-13182

Description

In Progress® Telerik® UI for AJAX prior to v2026.2.708, RadAsyncUpload client-state processing can distinguish decrypt failures from invalid-JSON parse failures, creating an oracle that reveals protected metadata values to remote attackers.

Affected products

Telerik/Ui For Asp.net Ajaxllm-fuzzy
Range: <2026.2.708
Progress (organisation)/Telerik Ui For Asp.net Ajaxllm-fuzzy
Range: <2026.2.708

Patches

Vulnerability mechanics

References

www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rau-padding-oracle-cve-2026-13182mitrevendor-advisory

News mentions

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