CVE-2026-11419
A path traversal flaw in Altium Enterprise Server's Vault Service UploadController lets an authenticated user write files anywhere the service account can access by manipulating the upload path. Because the written files can be placed in web‑accessible directories or overwrite critical files, the issue can lead to remote code execution, service takeover, or denial of service. Altium 365 cloud deployments are not affected.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Altium on‑prem Enterprise Server installations.
Real-world impact
An attacker with valid credentials could write arbitrary files to the server, potentially gaining full control or disrupting the service.
Why this severity
CVSS v4.0 base score 9.4 (Critical) reflects high impact on confidentiality, integrity, and availability with low attack complexity and no user interaction required.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- Jun 5, 2026 · Jun 5, 2026PublishedDisclosed and added to the National Vulnerability Database.
- Jul 23, 2026 · 12d agoAdvisory updatedThe NVD record was last revised.
How it’s attacked
References & advisories
- altium.com/platform/security-complianc…vendor advisory