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CVE-2026-85479— 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.

默认配置下，openPDC 上基于 STTP 的数据发布服务在未进行身份验证的情况下接受网络连接。未经验证的远程攻击者可以连接到此接口并与之交换数据。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-85479

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 STTP-based data publisher on openPDC accepts network connections without authentication in its default configuration. An unauthenticated network attacker can connect to this interface and exchange data with it.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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-2026-85479

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III. Intelligence Information for CVE-2026-85479

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Other References for CVE-2026-85479 (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-2026-105281 7.5 HIGH 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-2026-85479

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