GHSA-q5q9-2rhp-33qw

Suggest an improvement
Source
https://github.com/advisories/GHSA-q5q9-2rhp-33qw
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-q5q9-2rhp-33qw/GHSA-q5q9-2rhp-33qw.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-q5q9-2rhp-33qw
Aliases
Published
2026-03-09T17:42:17Z
Modified
2026-03-16T03:05:24Z
Severity
  • 6.9 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
Parse Server: GraphQL `__type` introspection bypass via inline fragments when public introspection is disabled
Details

Impact

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.

Patches

The check was changed from a flat iteration over root-level selections to a recursive walk of all selection sets, detecting __type inside inline fragments at any depth.

Workarounds

Require master key authentication at the network layer (e.g. reverse proxy) for the GraphQL endpoint.

References

Database specific
{
    "cwe_ids":  [
        "CWE-863"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-03-09T17:42:17Z",
    "nvd_published_at":  "2026-03-07T17:15:52Z",
    "severity":  "MODERATE"
}
References

Affected packages

npm / parse-server

Package

Affected ranges

Type
SEMVER
Events
Introduced
9.3.1-alpha.3
Fixed
9.5.0-alpha.10

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-q5q9-2rhp-33qw/GHSA-q5q9-2rhp-33qw.json"