{"id":"CVE-2026-85479","revision":"4571ec739c784599a927f9dc6053a2a4","records":[{"revision":"4571ec739c784599a927f9dc6053a2a4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-85479","aliases":[],"title":"Grid Protection Alliance openPDC and openHistorian Missing Authentication for Critical Function","description":"The STTP-based data publisher on openPDC accepts network connections without authentication in its default configuration. An unauthenticated network attacker can connect to this interface and exchange data with it.","state":0,"publishedAt":"2026-10-09T13:52:01.605+00:00","modifiedAt":"2026-10-11T17:05:29.076+00:00","affected":[{"ecosystem":"Vendor product","name":"openPDC","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Grid Protection Alliance\",\n                    \"product\": \"openPDC\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.9.477\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.9.482\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"2.9.482\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"},{"ecosystem":"Vendor product","name":"openPDC (Docker image)","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Grid Protection Alliance\",\n                    \"product\": \"openPDC (Docker image)\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.9.477\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.9.482\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"},{"ecosystem":"Vendor product","name":"openHistorian","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Grid Protection Alliance\",\n                    \"product\": \"openHistorian\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.8.580\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.8.585\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"2.8.585\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"}],"references":["https://www.cisa.gov/news-events/ics-advisories/icsa-26-281-02","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-281-02.json"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-85479","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-85479","identifiers":["CVE-2026-85479"]},"retained":false,"historicalAffected":[]}],"coverage":[]}