DialogHandler UploadPaths Tampering Vulnerability in Telerik UI for ASP.NET AJAX (CVE-2026-19219) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-19219

DialogHandler UploadPaths Tampering Vulnerability in Telerik UI for ASP.NET AJAX

Answer in brief

CVE-2026-19219 records a Unknown severity vulnerability in DialogHandler UploadPaths Tampering Vulnerability in Telerik UI for ASP.NET AJAX. The current sources do not mark it as known exploited. The current feed maps Progress Software/Telerik UI for ASP.NET AJAX (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 2, 2026Updated Sep 2, 2026Source checked Sep 2, 2026First seen by HOL Sep 2, 2026Material review Sep 2, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Progress Software/Telerik UI for ASP.NET AJAX (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Progress Software/Telerik UI for ASP.NET AJAXgeneric	>=2011.2.712 <2026.3.812	2026.3.812

Recommended response

Check inventory. Check lockfiles and deployed manifests for Progress Software/Telerik UI for ASP.NET AJAX.
Review the reported fix. Update Progress Software/Telerik UI for ASP.NET AJAX to 2026.3.812 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 2, 2026

Sources and claim methodology

Source referencetelerik.com

Upstream source description

In Progress® Telerik® UI for AJAX prior to v2026.3.812, insufficient integrity protection of dialog request parameters used by the RadEditor file browser may allow an attacker who has obtained certain application encryption key material to alter the folders the file browser reads from, writes to, and uploads into, potentially resulting in remote code execution.

Quoted source text, attributed separately from HOL analysis.