CVE-2026-13186: high-severity vulnerability in Progress Software Telerik UI for ASP.NET AJAX
AppDataStorageProvider Path Traversal Deserialization Vulnerability in Telerik UI for ASP.NET AJAX
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.7%
In Progress® Telerik® UI for AJAX prior to v2026.2.708, a path traversal vulnerability in the file-based persistence storage provider can be exploited when the storage key is derived from user-controlled input, enabling attacker-controlled deserialization and remote code execution.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Progress Software · Telerik UI for ASP.NET AJAXRelated CVEs — Progress Software Telerik UI for ASP.NET AJAX
In the same product, most dangerous first.
CVE-2025-3600HIGHUnsafe Reflection Vulnerability in Telerik UI for ASP.NET AJAXEPSS 26.3%CVE-2026-13181HIGHRadAsyncUpload AsyncUploadTypeName Type Resolution Vulnerability in Telerik UI for ASP.NET AJAXEPSS 0.7%CVE-2026-13185HIGHPersistenceFramework Cookie Deserialization Vulnerability in Telerik UI for ASP.NET AJAXEPSS 0.7%CVE-2026-6023HIGHDeserialization of Untrusted Data Vulnerability in Telerik UI for ASP.NET AJAXEPSS 0.5%CVE-2026-13190HIGHPersistenceFramework Unsafe Type Resolution Vulnerability in Telerik UI for ASP.NET AJAXEPSS 0.5%CVE-2026-18672HIGHRadImageEditor ClientState Unauthenticated Arbitrary File Read Vulnerability in Telerik UI for ASP.NET AJAXEPSS 0.5%