# CVE-2026-124705: URL Redirection to Untrusted Site in Progress Telerik UI for .NET MAUI

> Crafted PDF links in Telerik UI for .NET MAUI can launch arbitrary OS protocol handlers when users open them.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Harmful if only installed:** No
- **Needs a specific call:** No
- **Fix available:** No
- **Published:** 12 Nov 2026
- **Updated:** 12 Nov 2026
- **Also known as:** GHSA-wr8m-jv5q-2q2v

## What is CVE-2026-124705?

CVE-2026-124705 is a high-severity open redirect vulnerability in Progress Software Telerik UI for .NET MAUI, published on 12 Nov 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

In Progress® Telerik® UI for .NET MAUI prior to version 16.0.0, an untrusted URL redirection vulnerability in the RadRichTextEditor hyperlink handling and the RadPdfViewer link annotation handling allows an unauthenticated attacker to launch arbitrary operating system protocol handlers with attacker-controlled arguments via a crafted document or PDF link with a non-allowlisted URI scheme that the user opens.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2026-124705?

An affected version is exposed as installed. No special setting or call is needed.


## How do I fix CVE-2026-124705?

No fix has been published for CVE-2026-124705 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-124705 being exploited?

There is no known exploitation of CVE-2026-124705 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-124705 and fix it if it is affected.

What it is: CVE-2026-124705 is a high-severity open redirect vulnerability in Progress Software Telerik UI for .NET MAUI, published on 12 Nov 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-124705 in the wild and no public exploit code.
Exposure: An affected version is exposed as installed. No special setting or call is needed.

Affected product: Progress Software Telerik UI for .NET MAUI. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-124705/ (Markdown: https://insights.sbomify.com/CVE-2026-124705/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-124705
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-124705
- OSV: https://osv.dev/vulnerability/CVE-2026-124705

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-124705/
Summaries are generated and may contain mistakes; the official description above is the record.