CVE-2026-14865

MediumCVSS 5.3/10Last modified Oct 24, 2026

Description

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-776

Affected software

Vendor	Product	Versions
Progress Software	Telerik UI for ASP.NET AJAX	>= 2009.1.314, < 2026.2.708

References

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rlb-xxe-injection-client-state-cve-2026-14865Vendor Advisory, Mitigation

Timeline

Published: Jul 22, 2026
Last modified: Oct 24, 2026
NVD status: Analyzed

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