CVE-2026-13181

HIGH8.1

RadAsyncUpload AsyncUploadTypeName Type Resolution Vulnerability in Telerik UI for ASP.NET AJAX

Published Jul 22, 2026

Modified 1 months ago

Fix available

Details

In Progress® Telerik® UI for AJAX prior to v2026.2.708, forged upload metadata can influence AsyncUploadTypeName processing and trigger unsafe attacker-controlled type resolution, enabling remote code execution in affected deployments.

Affected Packages

Progress® Telerik® UI for ASP.NET AJAX

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1703)Windows 10 (1709)Windows 10 (1803)

Fixed in:

2026.2.708

References

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-13181

ADVISORY

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rau-asyncuploadtypename-deserialization-CVE-2026-13181

CVSS Analysis

CVSS v3.1

8.1

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

HighAC:H

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Weakness Type (CWE)

Other

CWE-470

Ecosystems(23)

Windows 10 (1507)Windows 10 (1607) / Server 2016 Windows 10 (1703)Windows 10 (1709)Windows 10 (1803)

Timeline

PublishedJul 22, 2026

ModifiedJul 24, 2026

CVE-2026-13181 | Mondoo Vulnerability Intelligence