CVE-2026-66008

Summary

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.

Affected Software

VendorProductVersion RangeStatus
parse-communityparse-server9.0.0 < 9.10.0-alpha.6affected
parse-communityparse-server9.10.0-alpha.6unaffected
parse-communityparse-server8.2.2 < 8.6.87affected
parse-communityparse-server8.6.87unaffected

Weaknesses

  • CWE-209: Generation of Error Message Containing Sensitive Information

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References