Is this vulnerability remotely exploitable over the internet?

Yes, if the OCPP WebSocket endpoint is exposed to the internet or any untrusted network without additional network-level protections, an attacker can attempt to connect remotely and impersonate charging stations.

Does an attacker need valid user accounts or backend credentials?

No. The described weakness allows unauthenticated attackers with mere network access and knowledge (or guesses) of station identifiers to interact with the backend as if they were legitimate chargers.

What is the safest general fix pattern for this issue?

The most robust fix is to require strong, device-level authentication for every WebSocket/OCPP connection, typically via mutual TLS or equivalent cryptographic mechanisms, and to verify that each presented station ID is bound to the authenticated device identity.

Severity:

CRITICAL RISK

(9.4)

Missing Authentication for OCPP WebSocket Endpoint (CWE-306) in EV Charging Backend

CVE-2026-29796

Published:

Mar 20, 2026

Status:

Awaiting Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Vulnerability Type

Category:

Missing Authentication

CWE:

CWE-306

Impact:

Unauthorized Control and Data Manipulation

Severity:

CRITICAL RISK

(9.4)

CVSS Version:

3.1

Vulnerability Type

Category:

Missing Authentication

CWE:

CWE-306

Impact:

Unauthorized Control and Data Manipulation

Severity:

CRITICAL RISK

(9.4)

CVSS Version:

3.1

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Missing Authentication for OCPP WebSocket Endpoint (CWE-306) in EV Charging Backend

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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