All vulnerabilities
CVE-2026-104629

Grid Protection Alliance openPDC and openHistorian Use of Externally-Controlled Input to Select Classes or Code

Grid Protection Alliance openPDC
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.34%Chance of exploitation activity in the next 30 days, higher than 25% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in2.9.477Also 2.9.482, 2.8.580 and 1 moreCVE List
Published9 Oct 2026Updated 9 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

A component loading mechanism in openPDC and openHistorian will construct and run any specified type, which may be an invalid component to load. An attacker with an authenticated user account and the ability to place a file on the host filesystem can use this to run arbitrary constructor code, and this code runs with the privileges of the affected service account.

Text from CVE List

Affected versions 8

  • openPDCaffected: all versions before 2.9.477CVE List
  • openPDCaffected: all versions before 2.9.482CVE List
  • openPDCunaffected: 2.9.482CVE List
  • openPDC (Docker image)affected: all versions before 2.9.477CVE List
  • openPDC (Docker image)affected: all versions before 2.9.482CVE List
  • openHistorianaffected: all versions before 2.8.580CVE List
  • openHistorianaffected: all versions before 2.8.585CVE List
  • openHistorianunaffected: 2.8.585CVE List

References 2