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CVE-2026-105281— Grid Protection Alliance openPDC and openHistorian Missing Authentication for Critical Function

Quick assessment

Affected
Grid Protection Alliance openPDC
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在默认配置下，openPDC 的内部数据发布服务器在不进行身份验证的情况下接受网络连接。未经授权的攻击者可以通过网络连接访问该接口，从而获取系统中完整的设备拓扑和测量拓扑信息。

CVSS 7.5 · High
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I. Basic Information for CVE-2026-105281

Vulnerability Information
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Vulnerability Title
Grid Protection Alliance openPDC and openHistorian Missing Authentication for Critical Function
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Grid Protection Alliance openPDC 0 ~ 2.9.477 -
Grid Protection Alliance openPDC (Docker image) 0 ~ 2.9.477 -
Grid Protection Alliance openHistorian 0 ~ 2.8.580 -

II. Public POCs for CVE-2026-105281

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III. Intelligence Information for CVE-2026-105281

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Other References for CVE-2026-105281 (2)

Same Patch Batch · Grid Protection Alliance · 2026-10-09 · 6 CVEs total

CVE-2026-100730 9.8 CRITICAL Grid Protection Alliance openPDC and openHistorian Deserialization of Untrusted Data
CVE-2026-105278 9.8 CRITICAL Grid Protection Alliance openPDC (Docker image) Use of Hard-coded Credentials
CVE-2026-104629 8.8 HIGH Grid Protection Alliance openPDC and openHistorian Use of Externally-Controlled Input to S
CVE-2026-85479 5.3 MEDIUM Grid Protection Alliance openPDC and openHistorian Missing Authentication for Critical Fun
CVE-2026-101022 4.3 MEDIUM Grid Protection Alliance openPDC and openHistorian Server-Side Request Forgery (SSRF)

IV. Related Vulnerabilities

Same product: openPDC
Same vendor: Grid Protection Alliance
Same weakness: CWE-306

V. Comments for CVE-2026-105281

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