CVE-2026-13182

HIGH

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

Title source: cna

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.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

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

Scores

CVSS v3 7.5

EPSS 0.0030

EPSS Percentile 22.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-209

Status published

Products (1)

Progress Software/Telerik UI for ASP.NET AJAX 2010.1.309 - 2026.2.708

Published Jul 22, 2026

Tracked Since Jul 22, 2026