CVE-2026-9129

A path traversal vulnerability exists in the Altium Enterprise Server Viewer StorageController due to improper handling of file path route parameters. On on-premise deployments that use local filesystem storage, a regular authenticated user can supply a URL-encoded absolute path (such as an encoded drive letter) in a Viewer storage API request, causing the configured storage root to be discarded and allowing arbitrary files to be read from the server filesystem. Because the readable files include the server's master configuration, which stores database credentials, signing key locations, certificate passwords, and OAuth secrets, exploitation can lead to disclosure of all server secrets and full compromise of the server and its data. Cloud deployments are not affected, as they use object storage and do not enable this component.

CVSS

No CVSS.

References

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

Configurations

No configuration.

History

20 May 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-20 20:16

Updated : 2026-05-21 15:24

NVD link : CVE-2026-9129

Mitre link : CVE-2026-9129

CVE.ORG link : CVE-2026-9129

JSON object : View

Products Affected

No product.

CWE

CWE-22

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

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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