TI-2026-05283 Aliases CVE-2026-6022 GHSA-vf2r-6g4x-jc4h

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

LOW 39CWE-400Published 2026-04-22 · Updated 2026-04-22

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00288 21st percentileScored 2026-11-07

Fix Fixed Telerik UI for ASP.NET AJAX (Progress Software): 2026.1.421

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Progress	Telerik UI for ASP.NET AJAX	2011.2.712 to before 2026.1.421	2026.1.421	Patch available	CNA

Telerik UI for ASP.NET AJAX VendorProgress Affected 2011.2.712 to before 2026.1.421 Fixed in 2026.1.421 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:progress:telerik_ui_for_asp.net_ajax::::::::	before 2026.1.421	Vulnerable	Progress

cpe:2.3:a:progress:telerik_ui_for_asp.net_ajax:*:*:*:*:*:*:*:* Versions before 2026.1.421 Vulnerable ·Progress

Remediation

Fix · CNA Telerik UI for ASP.NET AJAX (Progress Software) Fixed in 2026.1.421

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-04-22
Progress Software Telerik UI for ASP.NET AJAX 2026.1.421
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-05284 Deserialization of Untrusted Data Vulnerability in Telerik UI for ASP.NET AJAXPriority MEDIUM 44
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-6022
2026-10-03 Alias added: GHSA-vf2r-6g4x-jc4h

References

Advisory 1

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

TI-2017-08395 Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user… KEVCVSS 3.1CRITICAL 9.8
TI-2025-03167 Unsafe Reflection Vulnerability in Telerik UI for ASP.NET AJAX CVSS 3.1HIGH 7.5
TI-2019-14262 Path traversal in RadChart in Telerik UI for ASP.NET AJAX allows a remote attacker to… CVSS 3.1CRITICAL 9.8
TI-2021-09372 An issue was discovered in Progress Telerik UI for ASP.NET AJAX 2021.1.224. CVSS 3.1CRITICAL 9.8
TI-2026-05284 Deserialization of Untrusted Data Vulnerability in Telerik UI for ASP.NET AJAX CVSS 3.1CRITICAL 9.8
TI-2014-01755 Absolute path traversal vulnerability in the RadAsyncUpload control in the RadControls in… CVSS 2.0HIGH 7.5

See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences