CVE-2026-30854 (GCVE-0-2026-30854)
Vulnerability from cvelistv5 – Published: 2026-03-07 16:24 – Updated: 2026-03-07 16:24
VLAI?
Title
Parse Server: GraphQL `__type` introspection bypass via inline fragments when public introspection is disabled
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. From version 9.3.1-alpha.3 to before version 9.5.0-alpha.10, when graphQLPublicIntrospection is disabled, __type queries nested inside inline fragments (e.g. ... on Query { __type(name:"User") { name } }) bypass the introspection control, allowing unauthenticated users to perform type reconnaissance. __schema introspection is not affected. This issue has been patched in version 9.5.0-alpha.10.
Severity ?
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| parse-community | parse-server |
Affected:
>= 9.3.1-alpha.3, < 9.5.0-alpha.10
|
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}
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}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"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",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-863",
"description": "CWE-863: Incorrect Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-07T16:24:10.312Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/parse-community/parse-server/security/advisories/GHSA-q5q9-2rhp-33qw",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-q5q9-2rhp-33qw"
}
],
"source": {
"advisory": "GHSA-q5q9-2rhp-33qw",
"discovery": "UNKNOWN"
},
"title": "Parse Server: GraphQL `__type` introspection bypass via inline fragments when public introspection is disabled"
}
},
"cveMetadata": {
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"cveId": "CVE-2026-30854",
"datePublished": "2026-03-07T16:24:10.312Z",
"dateReserved": "2026-03-05T21:27:35.341Z",
"dateUpdated": "2026-03-07T16:24:10.312Z",
"state": "PUBLISHED"
},
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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