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.

Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

Chargemap did not respond to CISA's request for coordination. Contact Chargemap using their contact page here: https://chargemap.com/en-us/support for more information.

History

Thu, 26 Feb 2026 23:30:00 +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 Chargemap chargemap.com 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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-02-26T23:04:13.166Z

Reserved: 2026-02-20T18:28:15.424Z

Link: CVE-2026-25851

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-27T00:16:57.550

Modified: 2026-02-27T00:16:57.550

Link: CVE-2026-25851

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses