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CVE-2026-101022— Grid Protection Alliance openPDC and openHistorian Server-Side Request Forgery (SSRF)

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.

openPDC 的 Modbus 连接功能接受调用方指定的目标地址和端口，且对可攻击的内部主机无任何限制。经过身份验证的用户可以尝试连接到内部网络中的任意目的地，从而暴露哪些目的地是可达的。通过重复尝试，攻击者有可能绘制内部网络的拓扑结构。

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1046 · Network Service Discovery
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I. Basic Information for CVE-2026-101022

Vulnerability Information
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Vulnerability Title
Grid Protection Alliance openPDC and openHistorian Server-Side Request Forgery (SSRF)
Source: CVE Program / CVE List V5
Vulnerability Description
A Modbus connection feature on openPDC accepts a caller-specified destination address and port with no restriction on which internal hosts may be targeted. An authenticated user can attempt connections to arbitrary internal network destinations, revealing which destinations are reachable. With repeated attempts, an attacker may be able to map the internal network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
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-2026-101022

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-101022

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Other References for CVE-2026-101022 (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-2026-85479 5.3 MEDIUM Grid Protection Alliance openPDC and openHistorian Missing Authentication for Critical Fun

IV. Related Vulnerabilities

Same product: openPDC
Same vendor: Grid Protection Alliance
Same weakness: CWE-918

V. Comments for CVE-2026-101022

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