Vulnerability Description
Parse Server versions >= 9.0.0 before 9.10.0-alpha.6 and >= 8.2.2 before 8.6.87 disclose Pointer and Relation target class names through GraphQL validation and input-coercion error messages when public schema introspection is disabled (graphQLPublicIntrospection: false, the default). Because these errors are produced before authentication, authorization, or any resolver runs, an unauthenticated client possessing only the public application ID can trigger errors on Pointer or Relation fields to reconstruct hidden schema class names, partially defeating the schema-hiding protection. Only schema metadata (class names) is exposed; no object data, credentials, or user records are disclosed.
Related Weaknesses (CWE)
References
- https://github.com/parse-community/parse-server/security/advisories/GHSA-r2g6-4f
- https://www.vulncheck.com/advisories/parse-server-information-disclosure-via-gra
FAQ
What is CVE-2026-66008?
CVE-2026-66008 is a documented vulnerability. Parse Server versions >= 9.0.0 before 9.10.0-alpha.6 and >= 8.2.2 before 8.6.87 disclose Pointer and Relation target class names through GraphQL validation and input-coercion error messages when publi...
How severe is CVE-2026-66008?
CVSS scoring is not yet available for CVE-2026-66008. Check NVD for updates.
Is there a patch for CVE-2026-66008?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.