Is this vulnerability remotely exploitable?

Yes. If the OCPP WebSocket endpoint is reachable from untrusted networks (such as the public internet or shared provider networks), an attacker can exploit this vulnerability remotely by impersonating a charging station.

Does an attacker need valid credentials or insider access?

No traditional credentials are required if the endpoint does not enforce authentication. The main prerequisite is knowledge or successful guessing of a valid station identifier and the ability to reach the WebSocket endpoint over the network.

What is the safest general fix pattern?

The most robust approach is to enforce strong, cryptographically-backed authentication for all charging stations, such as mutual TLS with device certificates or signed tokens that bind a station ID to a verified credential, and to ensure all OCPP sessions pass through this authentication step before any commands or telemetry are accepted.

Severity:

CRITICAL RISK

(9.4)

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

CVE-2026-25851

Published:

Feb 26, 2026

Status:

Modified

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-78

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

Remote Code Execution

March 7, 2026

CWE-89

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Remote Code Execution via SQL Injection on the Database Server

March 7, 2026

Vulnerability Type

Category:

Missing Authentication / Broken Access Control

CWE:

CWE-306

Impact:

Unauthorized Control and Privilege Escalation via Station Impersonation

Severity:

CRITICAL RISK

(9.4)

CVSS Version:

3.1

Vulnerability Type

Category:

Missing Authentication / Broken Access Control

CWE:

CWE-306

Impact:

Unauthorized Control and Privilege Escalation via Station Impersonation

Severity:

CRITICAL RISK

(9.4)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

START 14 DAYS FREE TRIAL

BOOK A DEMO

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Missing Authentication for Critical WebSocket Endpoint (CWE-306) in OCPP 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

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare