Server-Side Request Forgery in Altium Enterprise Server UnifiedLogin Service Allows Unauthenticated System Compromise
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Altium Enterprise Server (Altium) Fixed in 8.1.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-92808
- 2026-10-03 Alias added: GHSA-jpmm-hm5g-c8g4
More Altium vulnerabilities
- TI-2026-09862 Path Traversal in Altium Vault ScriptsController Allows Unauthenticated Remote Code Execution CVSS 4.0CRITICAL 10.0
- TI-2026-09855 Path Traversal in Altium Enterprise Server NIS Allows Unauthenticated Arbitrary File Write and File Read CVSS 4.0CRITICAL 10.0
- TI-2026-09854 Path Traversal in Altium Enterprise Server Vault UploadController Allows Arbitrary File Write CVSS 4.0CRITICAL 9.4
- TI-2026-09851 Path traversal in Altium Enterprise Server CVSS 4.0CRITICAL 10.0
- TI-2026-08047 Unauthenticated SOAP Endpoint in Altium 365 SearchService Allows Cross-Tenant Data Exfiltration and Index Destruction CVSS 4.0CRITICAL 10.0
- TI-2025-20220 SQL Injection in AES Due to Inactive SQL Parsing Configuration CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-92808 · CVE Program
- CVE-2026-92808 · NVD
- FIRST EPSS
- GHSA-jpmm-hm5g-c8g4 · GitHub Advisory Database · CC BY 4.0
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