---
id: "CVE-2026-124704"
page: "https://infrastack.ai/live/CVE-2026-124704"
kind: "vulnerability"
aliases: ["CVE-2026-124704"]
title: "Telerik UI for WPF: untrusted data deserialization enables unauthorized actions in apps"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["dotnet", "package", "telerik", "windows", "wpf"]
not_affected_if: ["not-using-telerik-wpf"]
published_at: "2026-11-12T11:17:10+00:00"
first_seen_at: "2026-11-12T11:38:04+00:00"
updated_at: "2026-11-12T11:40:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124704", "first_seen_at": "2026-11-12T11:38:04+00:00"}]
exploit_sources: []
---

# Telerik UI for WPF: untrusted data deserialization enables unauthorized actions in apps

Link for people: https://infrastack.ai/live/CVE-2026-124704 (this .md is for agents)

Telerik UI for WPF, a component library for Windows desktop apps, deserializes untrusted data without checks. An attacker can perform unauthorized actions inside the affected application.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Telerik UI for WPF version in the project's package references, e.g. the `Telerik.UI.for.Wpf` package in the .csproj or packages.config.
- Look for any version below `2026.4.1110`.

## Fix

- Telerik UI for WPF: move to `2026.4.1110` or later.

## Timeline

- 2026-11-12T11:38:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124704

## From the sources

In Telerik UI for WPF, versions prior to 2026.4.1110, a deserialization of untrusted data vulnerability exists that allows an attacker to perform unauthorized actions in the context of the affected application.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_