CVE-2026-13185 PUBLISHED

PersistenceFramework Cookie Deserialization Vulnerability in Telerik UI for ASP.NET AJAX

Assigner: ProgressSoftware
Reserved: 24.06.2026 Published: 22.07.2026 Updated: 22.07.2026

In Progress® Telerik® UI for AJAX prior to v2026.2.708, applications using cookie-based storage in RadPersistenceManager or RadDockLayout deserialize attacker-controlled cookie content, allowing unauthenticated remote code execution.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.1

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Progress Software
Product	Telerik UI for ASP.NET AJAX
Versions	Default: unaffected affected from 2013.1.220 to 2026.2.708 (excl.)

Credits

Markus Wulftange with CODE WHITE GmbH finder

References

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-persistence-cookie-deserialization-CVE-2026-13185

Problem Types

CWE-502 Deserialization of Untrusted Data CWE

Impacts

CAPEC-586 Object Injection