CVE-2026-105281: high-severity vulnerability in Grid Protection Alliance openPDC
Grid Protection Alliance openPDC and openHistorian Missing Authentication for Critical Function
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.3%
The internal data publisher on openPDC accepts network connections without authentication in its default configuration. An unauthenticated network attacker can connect to this interface and retrieve the complete device and measurement topology of the system.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
Grid Protection Alliance · openHistorianGrid Protection Alliance · openPDCGrid Protection Alliance · openPDC (Docker image)Related CVEs — Grid Protection Alliance openPDC
In the same product, most dangerous first.
CVE-2026-100730CRITICALGrid Protection Alliance openPDC and openHistorian Deserialization of Untrusted DataEPSS 0.6%CVE-2026-105278CRITICALGrid Protection Alliance openPDC (Docker image) Use of Hard-coded CredentialsEPSS 0.3%CVE-2026-104629HIGHGrid Protection Alliance openPDC and openHistorian Use of Externally-Controlled Input to Select Classes or CodeEPSS 0.3%CVE-2026-85479MEDIUMGrid Protection Alliance openPDC and openHistorian Missing Authentication for Critical FunctionEPSS 0.3%CVE-2026-101022MEDIUMGrid Protection Alliance openPDC and openHistorian Server-Side Request Forgery (SSRF)EPSS 0.2%