View CSAF Summary The following versions of Grid Protection Alliance openPDC and openHistorian are affected: openPDC <2.9.477, <2.9.482 (CVE-2026-104629, CVE-2026-100730, CVE-2026-105281, CVE-2026-85479, CVE-2026-101022) openPDC (Docker image) <2.9.477, <2.9.482 (CVE-2026-104629, CVE-2026-100730, CVE-2026-105281, CVE-2026-85479, CVE-2026-101022, CVE-2026-105278) openHistorian <2.8.580, <2.8.585 (CVE-2026-104629, CVE-2026-100730, CVE-2026-105281, CVE-2026-85479, CVE-2026-101022) CVSS Vendor Equipment v3 9.8 Grid Protection Alliance openPDC 5 Vulnerabilities Deserialization of Untrusted Data, Missing Authentication for Critical Function, Server-Side Request Forgery (SSRF), Use of Hard-coded Credentials, Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') Background Critical Infrastructure Sectors: Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-100730 A service console interface on openPDC and openHistorian deserializes a client-supplied data structure. On systems using Windows Authentication, an attacker must already be authenticated to reach this function; on systems without Windows Authentication, this is reachable by an unauthenticated network attacker. This allows an attacker to trigger deserialization of an arbitrary object graph, which coul...