CVE-2026-20744
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe charging station websocket endpoint accepts connections without proper authentication, which could lead to privilege escalation.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThe charging station's websocket endpoint lacks authentication controls, allowing unauthenticated users to establish connections. This enables attackers to potentially escalate privileges by interacting with backend charging station management functions through the unsecured websocket channel.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the charging station websocket endpointLocate any websocket endpoints exposed by the charging station management interface. Check the application configuration, API documentation, or network listeners for paths such as /ws, /websocket, /charging/ws, or similar websocket URLs associated with the charging station service.Affected if A websocket endpoint exists and is accessible on the network without authentication requirements documented or configured.
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Verify websocket endpoint requires authenticationAttempt to establish a websocket connection to the identified endpoint without providing any credentials, tokens, or session cookies. Observe whether the connection is accepted or rejected based on authentication challenges.Affected if The websocket connection is successfully established without requiring any form of authentication (token, certificate, session, or basic auth).
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Test authorization enforcement on websocket commandsAfter establishing a websocket connection, send management commands (such as configuration changes, user privilege modifications, or firmware operations) without prior authentication. Verify if the backend accepts and executes these commands.Affected if The websocket accepts and processes privileged management commands without verifying user identity or permissions.
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Confirm TLS encryption is not requiredCheck if the websocket endpoint is accessible only over wss:// (secure) or allows both ws:// and wss:// connections. Attempt connections over unencrypted ws:// and observe if they are accepted.Affected if The websocket endpoint accepts unencrypted ws:// connections or does not enforce TLS requirement.
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Inspect websocket security configurationReview the charging station application configuration files, server settings, or middleware logs for websocket security settings. Look for parameters related to authentication, authorization, or session validation on websocket upgrades.Affected if No authentication or authorization middleware is configured for the websocket endpoint.
The environment is affected if the charging station websocket endpoint accepts unauthenticated connections and allows privileged management operations without identity verification.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement proper authentication and authorization controls on the websocket endpoint, such as token-based authentication, certificate validation, or OAuth, and enforce TLS encryption for all websocket communications.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,960.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-20744 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-20744 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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