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Vulnerability · Published Oct 9, 2026 · Assigned by icscert

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

Medium 4.3

In plain English

A medium-severity server-side request forgery in openHistorian from Grid Protection Alliance. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.2%top 91.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Grid Protection Alliance openPDC 0 – before 2.9.4770 – before 2.9.482
Grid Protection Alliance openPDC (Docker image) 0 – before 2.9.4770 – before 2.9.482
Grid Protection Alliance openHistorian 0 – before 2.8.5800 – before 2.8.585

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References