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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-209"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47248.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "8.6.78"
},
{
"introduced": "9.0.0"
},
{
"fixed": "9.9.1-alpha.2"
}
],
"source": "AFFECTED_FIELD"
}