CVE-2026-9102 Details
Description
A path traversal vulnerability exists in the Altium Enterprise Server ComparisonService due to missing filename sanitization in the Gerber file upload APIs. A regular authenticated workspace user can supply a crafted filename in the multipart Content-Disposition header to escape the intended temporary upload directory and write arbitrary files to any location on the server filesystem. Because content-controlled files can be written to web-accessible directories, this can be escalated to remote code execution in the context of the service account. It can also be used to overwrite application binaries or configuration files, leading to service takeover or denial of service.
A path traversal vulnerability has been identified in the Altium Enterprise Server ComparisonService. This issue arises from inadequate filename sanitization in the Gerber file upload APIs. An authenticated workspace user can exploit this vulnerability by sending a crafted filename in the multipart Content-Disposition header, allowing them to escape the designated temporary upload directory and write arbitrary files to any location on the server filesystem. Since the uploaded files can be directed to web-accessible directories, this vulnerability could be escalated to remote code execution under the service account. Additionally, it could be used to overwrite application binaries or configuration files, potentially leading to service takeover or denial of service.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 20, 2026CISA-ADP
Assessed May 20, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.altium.com/platform/security-compliance/security-advisories | Altium | AdvisoryVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | Altium |
| CWE-434 | Unrestricted Upload of File with Dangerous Type | Altium |
Affected Products
| Product | Versions |
|---|---|
| Altium Enterprise Server | 7.0.3 (semver) |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | Altium |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 20, 2026 | New CVE Received | Altium |