# CVE-2026-102637: Autodesk Fusion reflected XSS in protocol URL handler

Source: https://junglewise.ai/threats/cve-2026-102637-a-maliciously-crafted-html-payload-in-the-documentname-parameter  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-27. Updated: 2026-10-27  
License: CC BY 4.0 with a link back

CVE-2026-102637 · Severity: high · CVSS 7.1 · Published 2026-10-27

Autodesk Fusion is a cloud-connected desktop CAD application used by designers and engineers. A maliciously crafted link can exploit a reflected cross-site scripting flaw in Fusion's protocol URL handler, allowing an attacker to execute arbitrary code or access local files when a user clicks the link. This could result in compromise of design files, credentials, or complete system takeover.

Technologies: [Autodesk Fusion](https://junglewise.ai/threats/technologies/autodesk-fusion). Vendors: [Autodesk](https://junglewise.ai/threats/vendors/autodesk).

## Quick answers

**Is CVE-2026-102637 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-102637 being exploited in the wild.

**How severe is CVE-2026-102637?** High severity, with a CVSS score of 7.1, published 27 October 2026.

**Which products and versions are affected?** Autodesk Fusion.

**Is there a fix for CVE-2026-102637?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-102637 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-102637?** Check whether you run Autodesk Fusion. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A reflected XSS vulnerability exists in the documentName parameter of Fusion protocol URLs. When a user invokes a malicious protocol URL, unsanitized HTML payloads are rendered in the application context, allowing script execution with the privileges of the running process. An attacker can craft a link to trigger arbitrary JavaScript or read sensitive local files without requiring authentication.

## Affected products

- Autodesk Fusion

## Timeline

- 2026-10-27: disclosed

## References

- [https://dl.appstreaming.autodesk.com/production/installers/Fusion%20Client%20Downloader.dmg](https://dl.appstreaming.autodesk.com/production/installers/Fusion%20Client%20Downloader.dmg)
- [https://dl.appstreaming.autodesk.com/production/installers/Fusion%20Client%20Downloader.exe](https://dl.appstreaming.autodesk.com/production/installers/Fusion%20Client%20Downloader.exe)

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