Vulnerability from bitnami_vulndb
Parse Server versions >= 9.0.0 before 9.10.0 and >= 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.
{
"affected": [
{
"package": {
"ecosystem": "Bitnami",
"name": "parse",
"purl": "pkg:bitnami/parse"
},
"ranges": [
{
"events": [
{
"introduced": "8.2.2"
},
{
"fixed": "8.6.86"
},
{
"introduced": "9.0.0"
},
{
"fixed": "9.10.0"
}
],
"type": "SEMVER"
}
],
"severity": [
{
"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",
"type": "CVSS_V4"
}
]
}
],
"aliases": [
"CVE-2026-66009"
],
"database_specific": {
"cpes": [
"cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*"
],
"severity": "Medium"
},
"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 \u2014 with no user session, master key, or maintenance key \u2014 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.",
"id": "BIT-parse-2026-66009",
"modified": "2026-09-25T15:41:31.656Z",
"published": "2026-09-25T15:22:00.563Z",
"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"
}
],
"schema_version": "1.6.2",
"summary": "Parse Server 9.0.0 Information Disclosure via GraphQL Error Messages"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.