Summary
Default Express middleware security check is ignored in production
Default Express middleware security check is ignored in production
Impact
All Cube.js deployments that use affected versions of @cubejs-backend/api-gateway with default express authentication middleware in production environment are affected.
Patches
@cubejs-backend/[email protected]
Workarounds
Override default authentication express middleware: https://cube.dev/docs/@cubejs-backend-server-core#options-reference-check-auth-middleware
For more information
If you have any questions or comments about this advisory:
- Open an issue in https://github.com/cube-js/cube.js/issues
- Reach out us in community Slack: https://slack.cube.dev/
Impact
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Already deployed Kodem?
See it in your environmentNew to Kodem? Get a demo →Remediation advice
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is GHSA-4J6X-W426-6RC6? GHSA-4J6X-W426-6RC6 is a high-severity security vulnerability in @cubejs-backend/api-gateway (npm), affecting versions >= 0.11.0, <= 0.11.16. It is fixed in 0.11.17.
- Which versions of @cubejs-backend/api-gateway are affected by GHSA-4J6X-W426-6RC6? @cubejs-backend/api-gateway (npm) versions >= 0.11.0, <= 0.11.16 is affected.
- Is there a fix for GHSA-4J6X-W426-6RC6? Yes. GHSA-4J6X-W426-6RC6 is fixed in 0.11.17. Upgrade to this version or later.
- Is GHSA-4J6X-W426-6RC6 exploitable, and should I be worried? Whether GHSA-4J6X-W426-6RC6 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-4J6X-W426-6RC6 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-4J6X-W426-6RC6? Upgrade
@cubejs-backend/api-gatewayto 0.11.17 or later.