CVE-2026-100730
Grid Protection Alliance openPDC and openHistorian Deserialization of Untrusted Data
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-502 |
| Vendor | grid protection alliance |
| Product | openpdc |
| Published | Oct 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Grid Protection Alliance / openPDC
0 < 2.9.477 0 < 2.9.482
Grid Protection Alliance / openPDC (Docker image)
0 < 2.9.477 0 < 2.9.482
Grid Protection Alliance / openHistorian
0 < 2.8.580 0 < 2.8.585
References
Credits
Shubham Raj (Cipher) of Causal Security reported this vulnerability to CISA.