CVE-2026-9102
Path Traversal in Altium Enterprise Server ComparisonService Allows Arbitrary File Write
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.
INFO
Published Date :
May 20, 2026, 5:48 p.m.
Last Modified :
May 20, 2026, 5:48 p.m.
Remotely Exploit :
Yes !
Source :
Altium
Affected Products
The following products are affected by CVE-2026-9102
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | CRITICAL | 4760f414-e1ae-4ff1-bdad-c7a9c3538b79 |
Solution
- Implement strict filename sanitization for all file uploads.
- Validate uploaded filenames against an allowlist.
- Restrict file upload locations and permissions.
- Apply vendor patches or updates when available.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-9102 vulnerability anywhere in the article.