CVE-2026-9129
Path Traversal in Altium Enterprise Server Viewer StorageController Allows Arbitrary File Read
Description
A path traversal vulnerability exists in the Altium Enterprise Server Viewer StorageController due to improper handling of file path route parameters. On on-premise deployments that use local filesystem storage, a regular authenticated user can supply a URL-encoded absolute path (such as an encoded drive letter) in a Viewer storage API request, causing the configured storage root to be discarded and allowing arbitrary files to be read from the server filesystem. Because the readable files include the server's master configuration, which stores database credentials, signing key locations, certificate passwords, and OAuth secrets, exploitation can lead to disclosure of all server secrets and full compromise of the server and its data. Cloud deployments are not affected, as they use object storage and do not enable this component.
INFO
Published Date :
May 20, 2026, 6:05 p.m.
Last Modified :
May 20, 2026, 6:05 p.m.
Remotely Exploit :
Yes !
Source :
Altium
Affected Products
The following products are affected by CVE-2026-9129
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
- Update Altium Enterprise Server to the latest version.
- Restrict access to the affected API endpoints.
- Disable local filesystem storage if not needed.
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).
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The following list is the news that have been mention
CVE-2026-9129 vulnerability anywhere in the article.