CVE-2026-4344 Stored Cross-Site Scripting (XSS) Vulnerability in Assembly Component Name

High 7.1 Published 14 Apr 2026 Updated 15 Apr 2026

Stored XSS in Autodesk Fusion allows attackers to execute arbitrary code or read local files via malicious component names.

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
Fix: None listed

What is CVE-2026-4344?

CVE-2026-4344 is a high-severity cross-site scripting vulnerability in Autodesk Fusion, published on 14 Apr 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

A maliciously crafted HTML payload in a component name, when displayed during the delete confirmation dialog and clicked by a user, can trigger a Stored Cross-site Scripting (XSS) vulnerability in the Autodesk Fusion desktop application. A malicious actor may leverage this vulnerability to read local files or execute arbitrary code in the context of the current process.

Weakness: CWE-79

Which versions are affected by CVE-2026-4344?

It affects 1 product.

Products include Autodesk Fusion.

How do I fix CVE-2026-4344?

No fix has been published for CVE-2026-4344 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-4344 being exploited?

There is no known exploitation of CVE-2026-4344 in the wild and no public exploit code.

Sources

Also known as GHSA-355c-p2wf-x6ff.