---
id: "CVE-2026-106140"
page: "https://infrastack.ai/live/CVE-2026-106140"
kind: "vulnerability"
aliases: ["CVE-2026-106140"]
title: "Telerik Reporting: untrusted data in report designer lets local user run code"
severity: "high"
cvss: 7.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: [".net-framework", "package", "telerik-reporting", "windows"]
not_affected_if: ["designers-not-used", "versions-at-or-above-20.3.26.1110"]
published_at: "2026-11-12T10:17:26+00:00"
first_seen_at: "2026-11-12T10:37:45+00:00"
updated_at: "2026-11-12T10:39:39+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-106140", "first_seen_at": "2026-11-12T10:37:45+00:00"}]
exploit_sources: []
---

# Telerik Reporting: untrusted data in report designer lets local user run code

Link for people: https://infrastack.ai/live/CVE-2026-106140 (this .md is for agents)

Telerik Reporting versions before 20.3.26.1110 deserialize untrusted data in the .NET Framework report designers. A local attacker with low privileges can execute arbitrary code in the designer process when a user performs certain editing operations.

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

## How to check

- Check the installed Telerik Reporting version in the project's package references (for example the NuGet package list) for versions below `20.3.26.1110`
- Check whether the report designers are used on developer or analyst machines

## Fix

- Telerik Reporting: move to `20.3.26.1110` or later

## Timeline

- 2026-11-12T10:37:45+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-106140

## From the sources

In Progress® Telerik® Reporting prior to version 20.3.26.1110, a deserialization of untrusted data vulnerability in the .NET Framework report designers allows a local attacker with low privileges to execute arbitrary code in the context of the designer process when the user performs certain editing operations.

---

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