CVE-2026-13186

HIGH

AppDataStorageProvider Path Traversal Deserialization Vulnerability in Telerik UI for ASP.NET AJAX

Title source: cna

Description

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.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-appdata-path-traversal-deserialization-CVE-2026-13186

Scores

CVSS v3 8.1

EPSS 0.0050

EPSS Percentile 39.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-22

Status published

Products (1)

Progress Software/Telerik UI for ASP.NET AJAX 2013.1.220 - 2026.2.708

Published Jul 22, 2026

Tracked Since Jul 22, 2026