WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend.
History

Fri, 27 Feb 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Cloudcharge
Cloudcharge cloudcharge.se
Vendors & Products Cloudcharge
Cloudcharge cloudcharge.se

Thu, 26 Feb 2026 23:45:00 +0000

Type Values Removed Values Added
Description WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend.
Title CloudCharge cloudcharge.se Missing Authentication for Critical Function
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 9.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-02-26T23:24:00.964Z

Reserved: 2026-02-24T00:00:40.119Z

Link: CVE-2026-20781

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-27T00:16:55.807

Modified: 2026-02-27T14:06:37.987

Link: CVE-2026-20781

cve-icon Redhat

No data.