CVE-2026-11414
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk33th percentile — higher than 33% of all known CVEs
Summary
Altium Enterprise Server has a vulnerability related to the use of a hard-coded cryptographic key for signing file download URLs. This key is identical across all installations, allowing unauthenticated attackers to forge signatures and retrieve files from the Vault storage area without authentication.
Risk Assessment
This vulnerability allows unauthenticated attackers to access sensitive server configurations and key materials, potentially leading to full server compromise. The combination of this vulnerability with another, CVE-2026-9152, enables enumeration and bulk downloading of stored content.
Recommendation
It is recommended to update Altium Enterprise Server to the latest version to eliminate the hard-coded cryptographic key and secure file access. Additionally, monitoring and restricting access to the server should be implemented to minimize the risk of attacks.
Original NVD description (English source)
A hard-coded cryptographic key is used by Altium Enterprise Server to sign file download URLs in the Vault service. Because the key is identical across all installations, an unauthenticated network attacker who can reach the server can forge valid download signatures and retrieve files from the Vault storage area without any authentication, session, or credentials. A separate path traversal vulnerability in the same download endpoint allows the configured storage root to be escaped, enabling reads of arbitrary files on the server filesystem. Combined, these issues allow an unauthenticated attacker to obtain sensitive server configuration and key material, which can lead to full server compromise. The vulnerability can be chained with CVE-2026-9152 to enumerate and bulk-download stored content. Altium 365 cloud deployments are not impacted in practice, as file storage uses object storage rather than the local filesystem.