{"id":"BIT-parse-2026-66009","summary":"Parse Server 9.0.0 Information Disclosure via GraphQL Error Messages","details":"Parse Server versions \u003e= 9.0.0 before 9.10.0 and \u003e= 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.","aliases":["CVE-2026-66009","GHSA-2fgh-8j2g-w354"],"modified":"2026-09-25T15:55:55.207706961Z","published":"2026-09-25T15:22:00.563Z","database_specific":{"cpes":["cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-2fgh-8j2g-w354"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66009"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/parse-server-information-disclosure-via-graphql-error-messages-2"}],"affected":[{"package":{"name":"parse","ecosystem":"Bitnami","purl":"pkg:bitnami/parse"},"ranges":[{"type":"SEMVER","events":[{"introduced":"8.2.2"},{"fixed":"8.6.86"},{"introduced":"9.0.0"},{"fixed":"9.10.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/parse/BIT-parse-2026-66009.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}