CVE-2026-11429

Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file uploads where a user-supplied filename component is used to construct the destination path without validation, allowing arbitrary files to be written to any location writable by the service account. Because the file write operation completes before authentication is validated, the vulnerability can be exploited without any credentials, session, or prior knowledge of the system. An unauthenticated network attacker can use this primitive to place executable content in directories where it is later executed by the service, resulting in remote code execution under the Vault Service account. Altium Enterprise Server is fixed in 8.1.1; the issue has been remediated in Altium 365 (commercial and government cloud) at the service level.

CVSS

No CVSS.

References

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

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-05 22:16

Updated : 2026-07-23 07:10

NVD link : CVE-2026-11429

Mitre link : CVE-2026-11429

CVE.ORG link : CVE-2026-11429

JSON object : View

Products Affected

No product.

CWE

CWE-22

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

CWE-306

Missing Authentication for Critical Function

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