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.
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History
Wed, 20 May 2026 20:15:00 +0000
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Wed, 20 May 2026 19:30:00 +0000
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| 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. | |
| Title | Path Traversal in Altium Enterprise Server ComparisonService Allows Arbitrary File Write | |
| Weaknesses | CWE-22 CWE-434 |
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cvssV4_0
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Status: PUBLISHED
Assigner: Altium
Published:
Updated: 2026-05-20T19:30:23.892Z
Reserved: 2026-05-20T16:06:24.984Z
Link: CVE-2026-9102
Updated: 2026-05-20T19:29:45.536Z
Status : Received
Published: 2026-05-20T20:16:41.513
Modified: 2026-05-20T20:16:41.513
Link: CVE-2026-9102
No data.
OpenCVE Enrichment
Updated: 2026-05-20T20:45:03Z