Medium
Parse Server: GraphQL "Did you mean" validation suggestions disclose schema to unauthenticated callers
Type: advisorySources: OSV
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.78 and 9.9.1-alpha.2, Parse Server's GraphQL endpoint discloses schema metadata to unauthenticated callers through Did you mean ...? suggestions embedded in GraphQL validation-error messages. An unauthenticated caller who knows only the public application id can iteratively send malformed queries to reconstruct class names, field names, argument names, mutation names, and input-object fields. This issue has been patched in versions 8.6.78 and 9.9.1-alpha.2.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-47248
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 02:46 UTC · Revision 1
Source evidence
Parse Server: GraphQL "Did you mean" validation suggestions disclose schema to unauthenticated callers
core-osv · Original sourcePublished 12 Jun 2026, 18:21 UTC
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.78 and 9.9.1-alpha.2, Parse Server's GraphQL endpoint discloses schema metadata to unauthenticated callers through Did you mean ...? suggestions embedded in GraphQL validation-error messages. An unauthenticated caller who knows only the public application id can iteratively send malformed queries to reconstruct class names, field names, argument names, mutation names, and input-object fields. This issue has been patched in versions 8.6.78 and 9.9.1-alpha.2.
osv:CVE-2026-47248
Complete source record
{
"id": "95d0ca4398f5f2e68d78500ea209c89189ee560b76857bba6cb869ed8b350d47",
"url": "https://osv.dev/vulnerability/CVE-2026-47248",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Parse Server: GraphQL \"Did you mean\" validation suggestions disclose schema to unauthenticated callers",
"summary": "Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.78 and 9.9.1-alpha.2, Parse Server's GraphQL endpoint discloses schema metadata to unauthenticated callers through Did you mean ...? suggestions embedded in GraphQL validation-error messages. An unauthenticated caller who knows only the public application id can iteratively send malformed queries to reconstruct class names, field names, argument names, mutation names, and input-object fields. This issue has been patched in versions 8.6.78 and 9.9.1-alpha.2.",
"evidence": "osv:CVE-2026-47248",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-47248",
"aliases": [
"BIT-parse-2026-47248",
"CVE-2026-47248",
"GHSA-8cph-rgr4-g5vj"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "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"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/parse-community/parse-server",
"type": "GIT",
"events": [
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"introduced": "0"
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{
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{
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}
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{
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"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47248.json"
}
}
],
"modified": "2026-10-28T02:30:25.380443953Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47248.json",
"https://github.com/parse-community/parse-server/security/advisories/GHSA-8cph-rgr4-g5vj",
"https://nvd.nist.gov/vuln/detail/CVE-2026-47248",
"https://github.com/parse-community/parse-server/pull/10467",
"https://github.com/parse-community/parse-server/pull/10468"
],
"provider_metadata": {
"cwe_ids": [
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],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47248.json"
}
},
"related_cves": [
{
"value": "CVE-2026-47248",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 491970,
"published_at": "2026-06-12T18:21:31.511+00:00"
}