CVE-2026-100730: critical vulnerability in Grid Protection Alliance openPDC
Grid Protection Alliance openPDC and openHistorian Deserialization of Untrusted Data
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.6%
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 could allow remote code execution under the privileges of the affected service account.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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-2026-105278CRITICALGrid 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-2026-105281HIGHGrid Protection Alliance openPDC and openHistorian Missing Authentication for Critical FunctionEPSS 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%