CVE-2026-11419
Analyzed Analyzed - Analysis Complete
Path Traversal in Altium Enterprise Server Vault Service

Publication date: 2026-06-05

Last updated on: 2026-06-16

Assigner: Altium

Description
A path traversal vulnerability exists in the Altium Enterprise Server Vault Service UploadController due to improper validation of a user-controlled path component in image upload requests. An authenticated user can supply a crafted absolute path so that the configured storage root is discarded, allowing arbitrary files to be written to any location on the server filesystem writable by the service account. Because content-controlled files can be written to web-accessible directories, or used to overwrite application binaries or configuration files, this can be escalated to remote code execution, service takeover, or denial of service. Altium 365 cloud deployments are not affected, as the affected endpoint is not reachable and the cloud storage architecture mitigates the file-write primitive.
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Meta Information
Published
2026-06-05
Last Modified
2026-06-16
Generated
2026-06-27
AI Q&A
2026-06-06
EPSS Evaluated
2026-06-25
NVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
altium on-prem_enterprise_server to 8.1.1 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
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Executive Summary

This vulnerability is a path traversal issue in the Altium Enterprise Server Vault Service UploadController. It occurs because the service does not properly validate a user-controlled path component in image upload requests.

An authenticated user can provide a specially crafted absolute path that bypasses the configured storage root, allowing them to write arbitrary files anywhere on the server filesystem where the service account has write permissions.

Impact Analysis

This vulnerability can have severe impacts including remote code execution, service takeover, or denial of service.

Because the attacker can write files to web-accessible directories or overwrite application binaries or configuration files, they can escalate their privileges or disrupt the service.

Note that Altium 365 cloud deployments are not affected due to architectural differences and endpoint inaccessibility.

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