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.

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Advisories

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Fixes

Solution

Grid Protection Alliance has added additional validation into serialization logic in openPDC version 2.9.482 and later and openHistorian version 2.8.585 and later. Systems using Windows Authentication are additionally protected, as they require the attacker to already be authenticated to reach this function.


Workaround

Grid Protection Alliance does not recommend production use of published Docker images in any case. The fix for this vulnerability has not been published to the Docker image.

History

Fri, 09 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Grid Protection Alliance openPDC and openHistorian Deserialization of Untrusted Data
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-10-09T13:44:39.190Z

Reserved: 2026-10-05T16:54:01.616Z

Link: CVE-2026-100730

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-09T14:17:09.607

Modified: 2026-10-09T14:17:09.607

Link: CVE-2026-100730

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses