{"id":"CVE-2026-66009","aliases":["BIT-parse-2026-66009","EUVD-2026-48581","GHSA-2fgh-8j2g-w354","GHSA-v9g2-r7jf-7j84"],"status":"published","title":"Parse Server 9.0.0 Information Disclosure via GraphQL Error Messages","description":"Parse Server versions \u003e= 9.0.0 before 9.10.0-alpha.5 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.","severity":{"version":"4.0","score":6.3,"vector":"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00445,"percentile":0.38932,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-209"],"published":"2026-07-24T12:07:56Z","modified":"2026-10-28T02:30:26Z","fixes":[{"ecosystem":"Bitnami","package":"parse","fixed_in":["8.6.86","9.10.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"parse","ranges":[{"type":"SEMVER","events":[{"introduced":"8.2.2"},{"fixed":"8.6.86"},{"introduced":"9.0.0"},{"fixed":"9.10.0"}]}]}],"products":[{"vendor":"parse-community","product":"parse-server"}],"references":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-2fgh-8j2g-w354","tags":["vendor-advisory","web","advisory"]},{"url":"https://www.vulncheck.com/advisories/parse-server-information-disclosure-via-graphql-error-messages-2","tags":["third-party-advisory","web","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66009","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-v9g2-r7jf-7j84"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66009.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-66009","title":"Parse Server 9.0.0 Information Disclosure via GraphQL Error Messages","description":"Parse Server versions \u003e= 9.0.0 before 9.10.0-alpha.5 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.","status":"published","published":"2026-07-24T12:07:56.72Z","modified":"2026-07-28T01:06:21.175Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium","assessor":"cna"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:20:12.939084Z"}],"euvd":[{"id":"EUVD-2026-48581","description":"Parse Server versions \u003e= 9.0.0 before 9.10.0-alpha.5 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.","status":"published","published":"2026-07-24T12:07:56Z","modified":"2026-07-28T01:06:21Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"updated_at":"2026-11-02T18:02:33.420584Z"}],"ghsa":[{"id":"GHSA-v9g2-r7jf-7j84","title":"Parse Server versions \u003e= 9.0.0 before 9.10.0-alpha.5 and \u003e= 8.2.2 before 8.6.86 return GraphQL...","description":"Parse Server versions \u003e= 9.0.0 before 9.10.0-alpha.5 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.","status":"published","published":"2026-07-24T15:33:01Z","modified":"2026-07-24T15:33:09Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T15:09:46.569394Z"}],"nvd":[{"id":"CVE-2026-66009","description":"Parse Server versions \u003e= 9.0.0 before 9.10.0-alpha.5 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.","status":"published","published":"2026-07-24T13:18:28.58Z","modified":"2026-10-24T13:10:00.147Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium","assessor":"secondary"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:12:32.473901Z"}],"osv":[{"id":"CVE-2026-66009","title":"Parse Server 9.0.0 Information Disclosure via GraphQL Error Messages","description":"Parse Server versions \u003e= 9.0.0 before 9.10.0-alpha.5 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.","status":"published","published":"2026-07-24T12:07:56.72Z","modified":"2026-10-28T02:30:26.852373111Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T15:45:14.46177Z"},{"id":"BIT-parse-2026-66009","title":"Parse Server 9.0.0 Information Disclosure via GraphQL Error Messages","description":"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.","status":"published","published":"2026-09-25T15:22:00.563Z","modified":"2026-09-25T15:55:42.421681983Z","updated_at":"2026-11-02T15:28:34.343258Z"}]}}