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CVE-2026-13184

RadAsyncUpload Default HMAC Key Fallback Vulnerability in Telerik UI for ASP.NET AJAX

Published: Jul 22, 2026Updated: Aug 6, 2026 Sources: CVE List NVDCWE-321
7.5HIGH
NVD MITRE
EPSS Score
0.2%
Top 89.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

In Progress® Telerik® UI for AJAX prior to v2026.2.708, when Telerik.Upload.ConfigurationHashKey is absent and machineKey is not explicitly configured, upload metadata integrity protection may fall back to a predictable default key, enabling attackers to forge protected upload metadata and unlock further exploit chains.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-321

Affected Products

Progress Software
commercial·CA
Telerik UI for ASP.NET AJAXOn-premLibrary
Networking Infrastructure
progress
commercial·CAaka whatsup gold, moveit transfer, ws ftp server
telerik ui for asp.net ajaxOn-premLibrary
Enterprise Software / erp

Exploitability

Official Patch Available
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References

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rau-unauth-deserialization-chain-cve-2026-13184
telerik.com

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