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TI-2026-09265 Aliases CVE-2026-10789GHSA-fp83-vjxr-x824

MCP Extension Code Injection Vulnerability in Autodesk Fusion Desktop

Priority MEDIUM 44CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

A maliciously crafted webpage, when visited by a user with Autodesk Fusion Desktop running and the MCP extension enabled, can trigger a vulnerability in the MCP extension that could allow arbitrary code execution. A successful exploit may allow code to execute with the privileges of the current user.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00701 53rd percentileScored 2026-11-07
Fix Fixed Fusion (Autodesk): 2703.1.20

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AutodeskFusion2703.1.11 to before 2703.1.202703.1.20Patch availableCNA
  • Fusion VendorAutodesk Affected 2703.1.11 to before 2703.1.20 Fixed in 2703.1.20 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:autodesk:fusion:*:*:*:*:*:*:*:*before 2703.1.20VulnerableAutodesk
  • cpe:2.3:a:autodesk:fusion:*:*:*:*:*:*:*:* Versions before 2703.1.20 Vulnerable ·Autodesk

Remediation

  • Fix · CNA Fusion (Autodesk) Fixed in 2703.1.20

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-10789
  2. 2026-10-03 Alias added: GHSA-fp83-vjxr-x824

References

Patch 3

  • TI-2025-09404 HTML Payload Stored Cross-Site Scripting (XSS) Vulnerability CVSS 3.1HIGH 8.7
  • TI-2026-00338 Stored XSS in Electronic Library Component Description CVSS 3.1HIGH 8.1
  • TI-2026-00337 Stored XSS in the value of a part attribute CVSS 3.1HIGH 8.1
  • TI-2026-00336 Stored XSS in Fusion desktop when attempting to delete a file CVSS 3.1HIGH 8.1
  • TI-2021-17348 Use after free in Revit, Inventor, Infraworks, Navisworks, Fusion, Infrastructure Parts… CVSS 3.1HIGH 7.8
  • TI-2021-17347 Out-of-bounds write in Revit, Inventor, Infraworks, Navisworks, Fusion, Infrastructure… CVSS 3.1HIGH 7.8
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences