CVE-2026-14865mediumCWE-776

CVE-2026-14865: medium-severity vulnerability in Progress Software Telerik UI for ASP.NET AJAX

XXE Denial of Service via RadLayoutBuilder Client State in Telerik UI for ASP.NET AJAX

Published

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 0.4%
In Progress® Telerik® UI for AJAX prior to v2026.2.708, the internal LayoutBuilder control processes client-state XML without disabling DTD processing, allowing unauthenticated denial of service via recursive XML entity expansion.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
Progress Software · Telerik UI for ASP.NET AJAX
Related CVEs — Progress Software Telerik UI for ASP.NET AJAX

In the same product, most dangerous first.

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