{"id":"CVE-2026-64627","state":"PUBLISHED","title":"Parse Server 9.0.0 Schema Disclosure via GraphQL Variable Coercion","description":"Parse Server versions >= 9.0.0 before 9.10.0-alpha.4 and versions before 8.6.85 contain a schema disclosure vulnerability. When the GraphQL API is mounted with public introspection disabled (graphQLPublicIntrospection: false, the default), schema-derived 'Did you mean ...?' suggestions were still returned in GraphQL error messages produced during variable coercion, which were not covered by the introspection-hardening control (that only handled validation errors). An unauthenticated caller possessing only the public application id can iteratively recover hidden schema identifiers — including registered Cloud Code function names and Parse class and field names — by submitting queries or mutations whose variables contain near-miss enum values or input-object field names. This is a follow-up bypass of GHSA-8cph-rgr4-g5vj. The issue is fixed in 9.10.0-alpha.4 and 8.6.85.","publishedAt":"2026-07-21T11:39:55.087Z","updatedAt":"2026-07-28T01:05:56.657Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["parse-community parse-server"],"affected":[{"vendor":"parse-community","product":"parse-server","packageURL":"pkg:npm/parse-server","defaultStatus":"unaffected","versions":[{"version":"9.0.0","status":"affected","lessThan":"9.10.0-alpha.4","versionType":"semver"},{"version":"9.10.0-alpha.4","status":"unaffected","versionType":"semver"}]},{"vendor":"parse-community","product":"parse-server","packageURL":"pkg:npm/parse-server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"8.6.85","versionType":"semver"},{"version":"8.6.85","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/parse-community/parse-server/security/advisories/GHSA-9g8f-h8f3-hjcm","https://www.vulncheck.com/advisories/parse-server-schema-disclosure-via-graphql-variable-coercion"],"weaknesses":["CWE-209"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/64xxx/CVE-2026-64627.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64627","state":"PUBLISHED","datePublished":"2026-07-21T11:39:55.087Z","dateUpdated":"2026-07-28T01:05:56.657Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-07-20T11:58:54.524Z"},"containers":{"cna":{"title":"Parse Server 9.0.0 Schema Disclosure via GraphQL Variable Coercion","descriptions":[{"lang":"en","value":"Parse Server versions >= 9.0.0 before 9.10.0-alpha.4 and versions before 8.6.85 contain a schema disclosure vulnerability. When the GraphQL API is mounted with public introspection disabled (graphQLPublicIntrospection: false, the default), schema-derived 'Did you mean ...?' suggestions were still returned in GraphQL error messages produced during variable coercion, which were not covered by the introspection-hardening control (that only handled validation errors). An unauthenticated caller possessing only the public application id can iteratively recover hidden schema identifiers — including registered Cloud Code function names and Parse class and field names — by submitting queries or mutations whose variables contain near-miss enum values or input-object field names. This is a follow-up bypass of GHSA-8cph-rgr4-g5vj. The issue is fixed in 9.10.0-alpha.4 and 8.6.85."}],"affected":[{"vendor":"parse-community","product":"parse-server","packageURL":"pkg:npm/parse-server","defaultStatus":"unaffected","versions":[{"version":"9.0.0","status":"affected","lessThan":"9.10.0-alpha.4","versionType":"semver"},{"version":"9.10.0-alpha.4","status":"unaffected","versionType":"semver"}]},{"vendor":"parse-community","product":"parse-server","packageURL":"pkg:npm/parse-server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"8.6.85","versionType":"semver"},{"version":"8.6.85","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-9g8f-h8f3-hjcm","name":"GitHub Security Advisory (GHSA-9g8f-h8f3-hjcm)","tags":["vendor-advisory"]},{"url":"https://www.vulncheck.com/advisories/parse-server-schema-disclosure-via-graphql-variable-coercion","name":"VulnCheck Advisory: Parse Server 9.0.0 Schema Disclosure via GraphQL Variable Coercion","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-209","lang":"en","description":"Generation of Error Message Containing Sensitive Information","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-07-28T01:05:56.657Z"},"datePublic":"2026-07-08T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*","versionStartIncluding":"9.0.0","versionEndExcluding":"9.10.0-alpha.4"},{"vulnerable":true,"criteria":"cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*","versionEndExcluding":"8.6.85"}]}]}],"credits":[{"lang":"en","value":"offset","type":"reporter"},{"lang":"en","value":"mtrezza","type":"coordinator"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-21T13:11:04.531501Z","id":"CVE-2026-64627","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-21T14:55:23.663Z"}}]}}}