Remote Code Execution Vulnerability in Progress® Telerik® UI for AJAX
CVE-2026-13181

8.1HIGH

Key Information:

Vendor

Progress Software
Status
Telerik Ui For Asp.net Ajax
Vendor
CVE Published:
22 July 2026

Badges

👾 Exploit Exists🟡 Public PoC📰 News Worthy

What is CVE-2026-13181?

A vulnerability in Telerik UI for AJAX versions earlier than v2026.2.708 allows an attacker to influence AsyncUploadTypeName processing through forged upload metadata. This manipulation can lead to unsafe type resolution, potentially enabling remote code execution in affected environments. It is crucial for users of this product to apply the necessary updates to mitigate the risk associated with this vulnerability.

Affected Version(s)

Telerik UI for ASP.NET AJAX 2010.1.309 < 2026.2.708

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-13181-CVE-2026-13182-CVE-2026-13183-CVE-2026-13184
Created by HORKimhab

News Articles

favicon imageThe Hacker News

Telerik UI Padding-Oracle Bug Chained to Unauthenticated RCE — Public Exploit Released

TantoSec's Telerik UI PoC demonstrates unauthenticated RCE under specific non-default conditions; fixes shipped in July.

2 days ago

References

https://www.telerik.com/products/aspnet-ajax/documentatio...
vendor-advisory

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • 📰

    First article discovered by The Hacker News

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marcio Almeida of TantoSec
.