CVE-2026-6022

High

Description

In Progress® Telerik® UI for AJAX prior to 2026.1.421, RadAsyncUpload contains an uncontrolled resource consumption vulnerability that allows file uploads to exceed the configured maximum size due to missing cumulative size enforcement during chunk reassembly, leading to disk space exhaustion.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Progress Telerik Ui For Asp.net Ajax

PublishedApr 22, 2026

First seenApr 22, 2026

Weakness typeCWE-400Uncontrolled resource consumption

How to fix

Update

progress telerik_ui_for_asp.net_ajax2026.1.421 or later

Vendor advisories

telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-uncontrolled-resource-consumption-cve-2026-6022

Affected products

Product	Affected versions	Fixed in
progress telerik_ui_for_asp.net_ajax	v < 2026.1.421	2026.1.421

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