CVE-2026-11431

A path traversal vulnerability exists in the Projects Service download endpoint shared by Altium Enterprise Server and Altium 365. An authenticated user can supply a crafted path parameter that bypasses validation, allowing arbitrary files (including entire directories returned as archives) to be read from the server filesystem. Because the readable files include service configuration and credential material, exploitation can be used to gather information enabling further compromise. The issue can be combined with CVE-2026-11424 to reach the cloud-side endpoint. On multi-tenant Altium 365 deployments, the readable configuration could have exposed credentials shared across services. Altium Enterprise Server is fixed in 8.1.1; the issue has been remediated in Altium 365 at the service level.

CVSS

No CVSS.

References

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

Configurations

No configuration.

History

05 Jun 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-05 22:16

Updated : 2026-06-17 10:14

NVD link : CVE-2026-11431

Mitre link : CVE-2026-11431

CVE.ORG link : CVE-2026-11431

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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