CVE-2026-11423

A path traversal vulnerability exists in the Altium Enterprise Server Collaboration Service due to improper handling of user-supplied filenames in the MCAD and Simulation file download flows. A regular authenticated user can submit a collaboration message containing a crafted filename, which is later used to construct the download path on the server without validation, allowing arbitrary files to be read from the server filesystem. Because the readable files include the server's master configuration, which stores credentials for privileged accounts, exploitation can lead to authenticating as a system administrator and gaining full control of the server. Altium 365 cloud deployments are not affected.

CVSS

No CVSS.

References

Link	Resource
https://www.altium.com/platform/security-compliance/security-advisories

Configurations

No configuration.

History

05 Jun 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-05 21:16

Updated : 2026-06-08 15:00

NVD link : CVE-2026-11423

Mitre link : CVE-2026-11423

CVE.ORG link : CVE-2026-11423

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-269

Improper Privilege Management

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