Parse Server versions >= 9.0.0 before 9.10.0-alpha.5 and >= 8.2.2 before 8.6.86 return GraphQL validation error messages that name required custom input fields even when public introspection is disabled (graphQLPublicIntrospection: false, the default). A client holding only the public application id — with no user session, master key, or maintenance key — can trigger validation errors to learn the names of required (non-null) custom fields on classes it already references by name, partially defeating the schema-hiding intent of disabling public introspection. No stored data, credentials, optional field names, unreferenced class names, or Cloud Code function names are exposed.
Metrics
Affected Vendors & Products
References
History
Sat, 25 Jul 2026 01:30:00 +0000
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ssvc
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Fri, 24 Jul 2026 23:00:00 +0000
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Parse Community
Parse Community parse Server |
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Parse Community
Parse Community parse Server |
Fri, 24 Jul 2026 18:30:00 +0000
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| Description | Parse Server versions >= 9.0.0 before 9.10.0-alpha.5 and >= 8.2.2 before 8.6.86 return GraphQL validation error messages that name required custom input fields even when public introspection is disabled (graphQLPublicIntrospection: false, the default). A client holding only the public application id — with no user session, master key, or maintenance key — can trigger validation errors to learn the names of required (non-null) custom fields on classes it already references by name, partially defeating the schema-hiding intent of disabling public introspection. No stored data, credentials, optional field names, unreferenced class names, or Cloud Code function names are exposed. | |
| Title | Parse Server 9.0.0 Information Disclosure via GraphQL Error Messages | |
| Weaknesses | CWE-209 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-07-24T12:07:56.720Z
Updated: 2026-07-25T00:52:22.059Z
Reserved: 2026-07-23T19:22:30.643Z
Link: CVE-2026-66009
Updated: 2026-07-25T00:52:17.721Z
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