What’s Vulnerable › Vulnerabilities
CVE-2026-11419: Path Traversal in Altium Enterprise Server Vault UploadController Allows Arbitrary File Write
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-05 · updated 2026-07-23
- Weakness: CWE-22
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.
Affected products
- Altium Enterprise Server: before 8.1.1 — fixed in 8.1.1
How to fix
Upgrade to a fixed version: Altium Enterprise Server 8.1.1. Check the vendor advisory for mitigations.
References
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