CVE-2026-100730
Grid Protection Alliance openPDC and openHistorian Deserialization of Untrusted Data
- Published
- Last modified
- Status
- published
- Known exploitation
- Not listed in CISA KEV
- Fix
- Fixed in 2.9.477, 2.9.482, 2.8.580, 2.8.585
- Public exploit
- None on Exploit-DB
CISA SSVC
- Exploitation: none
- Automatable: yes
- Technical impact: total
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Decision points from CISA's Vulnrichment, assessed (SSVC 2.0.3).
SSVC documentationSummary
A service console interface on openPDC and openHistorian deserializes a client-supplied data structure. On systems using Windows Authentication, an attacker must already be authenticated to reach this function; on systems without Windows Authentication, this is reachable by an unauthenticated network attacker. This allows an attacker to trigger deserialization of an arbitrary object graph, which could allow remote code execution under the privileges of the affected service account.
Affected versions
- Grid Protection Alliance openPDC
fixed in 2.9.477; fixed in 2.9.482
- Grid Protection Alliance openPDC (Docker image)
fixed in 2.9.477; fixed in 2.9.482
- Grid Protection Alliance openHistorian
fixed in 2.8.580; fixed in 2.8.585