Vulnerability Description
Coop is an open source review and moderation tool from ROOST. Prior to 1.0.0, the `GraphQL` `Mutation.createOrg` operation allows an unauthenticated actor to create arbitrary organizations on a publicly accessible instance. In addition to creating noise in the logs, the lack of rate limiting could potentially lead to database exhaustion. Running the service on an authenticated private network prevents outside actors from directly querying the `GraphQL` API. This issue is fixed in version 1.0.0.
Related Weaknesses (CWE)
References
- https://github.com/roostorg/coop/commit/b29242f12f5acca0ac26116c30be9da77c15d93c
- https://github.com/roostorg/coop/pull/699
- https://github.com/roostorg/coop/releases/tag/1.0.0
- https://github.com/roostorg/coop/security/advisories/GHSA-jcph-g6qv-g475
FAQ
What is CVE-2026-63399?
CVE-2026-63399 is a documented vulnerability. Coop is an open source review and moderation tool from ROOST. Prior to 1.0.0, the `GraphQL` `Mutation.createOrg` operation allows an unauthenticated actor to create arbitrary organizations on a public...
How severe is CVE-2026-63399?
CVSS scoring is not yet available for CVE-2026-63399. Check NVD for updates.
Is there a patch for CVE-2026-63399?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.