CVE-2023-50709
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 · uneditedCube is a semantic layer for building data applications. Prior to version 0.34.34, it is possible to make the entire Cube API unavailable by submitting a specially crafted request to a Cube API endpoint. The issue has been patched in `v0.34.34` and it's recommended that all users exposing Cube APIs to the public internet upgrade to the latest version to prevent service disruption. There are currently no workaround for older versions, and the recommendation is to upgrade.
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 · high confidenceCube versions before 0.34.34 contain a vulnerability in API request handling where specially crafted requests can cause the entire Cube API to become unavailable, resulting in a denial-of-service condition.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 0.34.34CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 installed Cube.js versionRun `npm list cubejs` in your project directory, or check the version field in your package.json file, or query the Cube API version endpoint if available.Affected if The displayed version is lower than 0.34.34 (e.g., 0.34.33, 0.34.0, or any 0.x.x version below 0.34.34).
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Confirm Cube API service is runningCheck if the Cube.js API server is actively listening on its configured port (default 4000). Use commands like `curl http://localhost:4000` or check running processes with `ps aux | grep cube`.Affected if The Cube API service is exposed and handling requests.
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Verify API request handling is enabledConfirm that the Cube API endpoint is accessible and processing queries. This is typically the default behavior when Cube.js is deployed.Affected if The API is accessible and processing query requests from clients.
You are affected if your deployed Cube.js version is below 0.34.34 and the Cube API service is running and accessible.
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.
dbcve · scoped0.34.34
Upgrade Cube to version 0.34.34 or later to patch the vulnerability; no workarounds exist for older versions.
v0.34.34
- Check the current version of Cube.js in your project (e.g., check package.json)
- Update Cube.js to version 0.34.34 or later using your package manager (e.g., npm install @cubejs-backend/[email protected] or npm install @cubejs-backend/server@latest)
- Restart the Cube.js service to apply the update
- Verify the service is running correctly and test your API endpoints
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-50709 — 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-2023-50709 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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