CVE-2026-19219
Telerik UI for AJAX allows tampering of RadEditor file-browser paths, enabling potential RCE.
Is CVE-2026-19219 being exploited?
Not confirmed. CVE-2026-19219 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.16% probability of exploitation in the next 30 days.
How severe is CVE-2026-19219?
CVE-2026-19219 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-19219?
Yes. A fix has been recorded for CVE-2026-19219. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-19219 affect?
CVE-2026-19219 affects Progress Telerik UI for ASP.NET AJAX < v2026.3.812, RadEditor file browser dialog handler. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-19219?
Upgrade to v2026.3.812+, rotate encryption keys, audit file-browser permissions.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
If attacker obtains application encryption key material, they can alter file-browser read/write/upload paths to upload malicious files and achieve remote code execution.
Immediate action required
- affected>= 2011.2.712 and < 2026.3.812
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.