Uncontrolled Resource Consumption Vulnerability in Telerik UI for ASP.NET AJAX

published 2026-04-22 6 mo ago modified 2026-10-26 13 d ago also EUVD-2026-24631

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

Progress Software Telerik UI for ASP.NET AJAX 2026.1.421

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 6 mo ago (2026-04-22)

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Progress Software Telerik UI for ASP.NET AJAX

Classification

Weakness

CWE-400 Uncontrolled Resource Consumption

References

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

Sources

CVE List CVE-2026-6022
NVD CVE-2026-6022

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary