Altium Enterprise Server up to 8.1.0 UnifiedLogin service server-side request forgery

Summaryinfo

A vulnerability categorized as critical has been discovered in Altium Enterprise Server up to 8.1.0. Affected by this vulnerability is an unknown functionality of the component UnifiedLogin service. Executing a manipulation can lead to server-side request forgery. This vulnerability is registered as CVE-2026-92808. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Altium Enterprise Server up to 8.1.0 and classified as critical. This vulnerability affects an unknown functionality of the component UnifiedLogin service. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A server-side request forgery (SSRF) vulnerability exists in the UnifiedLogin service of Altium Enterprise Server. An unauthenticated network attacker can cause the server to issue outbound HTTP requests to a destination of the attacker's choosing, including internal services that are reachable only from the server itself. One such internal service exposes server configuration and credential material without authentication, relying only on the request originating locally. Because the forged requests originate from the server process, that check is satisfied. An unauthenticated attacker can therefore retrieve stored credentials and use them to obtain an administrative session, resulting in full compromise of the server and all of its services. Altium 365 cloud deployments are not affected, as the affected endpoint is disabled in cloud mode.

The advisory is shared for download at altium.com. This vulnerability was named CVE-2026-92808 since 09/16/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 8.1.1 eliminates this vulnerability.

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Productinfo

Vendor

• Altium

Name

• Enterprise Server

Version

• 8.0
• 8.1.0

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