CVE-2026-19219 DialogHandler UploadPaths Tampering Vulnerability in Telerik UI for ASP.NET AJAX
Attackers with encryption keys can tamper with file browser paths to upload malicious files, leading to remote code execution in Telerik UI for ASP.NET AJAX.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19219?
CVE-2026-19219 is a high-severity vulnerability in Progress Software Telerik UI for ASP.NET AJAX, published on 2 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-19219?
How do I fix CVE-2026-19219?
No fix has been published for CVE-2026-19219 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-19219 being exploited?
There is no known exploitation of CVE-2026-19219 in the wild and no public exploit code.
Sources
Also known as GHSA-82ph-hv94-946r.