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.
Advisories

No advisories yet.

Fixes

Solution

Grid Protection Alliance updated the default configuration to bind this interface to the local loopback address only. This change applies to new installations; existing installations upgraded from an earlier version retain their prior configuration and will not receive the new default automatically. Operators should verify their configuration explicitly and update the interface binding if it is still set to accept connections on all interfaces.


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 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.
Title Grid Protection Alliance openPDC and openHistorian Missing Authentication for Critical Function
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.7, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-10-09T13:49:06.352Z

Reserved: 2026-10-05T16:54:01.621Z

Link: CVE-2026-105281

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-09T14:17:11.450

Modified: 2026-10-09T16:41:53.540

Link: CVE-2026-105281

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses