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CVE-2026-11429

Path Traversal in Altium Vault ScriptsController Allows Unauthenticated Remote Code Execution PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Altium / Altium Enterprise Serveraffected 0 before 8.1.1
Altium / Altium 365affected unspecified

CWE

CWE-22, CWE-306

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.