Vulnerability-Lookup

GHSA-8CPH-RGR4-G5VJ

Vulnerability from github – Published: 2026-05-29 19:18 – Updated: 2026-06-12 21:59

Summary

Parse Server's GraphQL "Did you mean ...?" validation suggestions disclose schema to unauthenticated callers

Details

Impact

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 bypasses the IntrospectionControlPlugin enforced when graphQLPublicIntrospection: false (the default) and defeats the schema-hiding goal of prior advisories GHSA-48q3-prgv-gm4w and GHSA-q5q9-2rhp-33qw. Schema disclosure aids reconnaissance for downstream authorization probing but does not by itself leak object data or authentication material.

Patches

A new SchemaSuggestionsControlPlugin Apollo plugin strips the Did you mean ...? suffix from GraphQL validation-error messages during validationDidStart, which runs before any introspection gate. The plugin applies only when graphQLPublicIntrospection: false and the caller is not a master-key or maintenance-key holder, matching the trust model of the existing IntrospectionControlPlugin.

Workarounds

No code workaround is available short of disabling the GraphQL API (mountGraphQL: false). Operators who require disclosure-resistant validation errors should upgrade to a patched release.

Resources

GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-8cph-rgr4-g5vj
Fix Parse Server 9: https://github.com/parse-community/parse-server/pull/10467
Fix Parse Server 8: https://github.com/parse-community/parse-server/pull/10468

Severity

6.9 (Medium)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "parse-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.9.1-alpha.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "parse-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.6.78"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-47248"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-209"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-29T19:18:01Z",
    "nvd_published_at": "2026-06-12T19:16:28Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nParse Server\u0027s 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 bypasses the `IntrospectionControlPlugin` enforced when `graphQLPublicIntrospection: false` (the default) and defeats the schema-hiding goal of prior advisories GHSA-48q3-prgv-gm4w and GHSA-q5q9-2rhp-33qw. Schema disclosure aids reconnaissance for downstream authorization probing but does not by itself leak object data or authentication material.\n\n### Patches\n\nA new `SchemaSuggestionsControlPlugin` Apollo plugin strips the `Did you mean ...?` suffix from GraphQL validation-error messages during `validationDidStart`, which runs before any introspection gate. The plugin applies only when `graphQLPublicIntrospection: false` and the caller is not a master-key or maintenance-key holder, matching the trust model of the existing `IntrospectionControlPlugin`.\n\n### Workarounds\n\nNo code workaround is available short of disabling the GraphQL API (`mountGraphQL: false`). Operators who require disclosure-resistant validation errors should upgrade to a patched release.\n\n### Resources\n\n- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-8cph-rgr4-g5vj\n- Fix Parse Server 9: https://github.com/parse-community/parse-server/pull/10467\n- Fix Parse Server 8: https://github.com/parse-community/parse-server/pull/10468",
  "id": "GHSA-8cph-rgr4-g5vj",
  "modified": "2026-06-12T21:59:48Z",
  "published": "2026-05-29T19:18:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-8cph-rgr4-g5vj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47248"
    },
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/pull/10467"
    },
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/pull/10468"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/parse-community/parse-server"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Parse Server\u0027s GraphQL \"Did you mean ...?\" validation suggestions disclose schema to unauthenticated callers"
}

CVE-2026-47248 (GCVE-0-2026-47248)

Vulnerability from cvelistv5 – Published: 2026-06-12 18:21 – Updated: 2026-06-12 20:04

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.

Severity

6.9 (Medium)


                        
                          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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-209 - Generation of Error Message Containing Sensitive Information

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/parse-community/parse-server/s…	x_refsource_CONFIRM
https://github.com/parse-community/parse-server/p…	x_refsource_MISC
https://github.com/parse-community/parse-server/p…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
parse-community	parse-server	Affected: < 8.6.78 Affected: >= 9.0.0, < 9.9.1-alpha.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-47248",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-12T20:04:32.992755Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-12T20:04:40.587Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "parse-server",
          "vendor": "parse-community",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 8.6.78"
            },
            {
              "status": "affected",
              "version": "\u003e= 9.0.0, \u003c 9.9.1-alpha.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027s 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."
        }
      ],
      "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-209",
              "description": "CWE-209: Generation of Error Message Containing Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-12T18:21:31.511Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/parse-community/parse-server/security/advisories/GHSA-8cph-rgr4-g5vj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-8cph-rgr4-g5vj"
        },
        {
          "name": "https://github.com/parse-community/parse-server/pull/10467",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/parse-community/parse-server/pull/10467"
        },
        {
          "name": "https://github.com/parse-community/parse-server/pull/10468",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/parse-community/parse-server/pull/10468"
        }
      ],
      "source": {
        "advisory": "GHSA-8cph-rgr4-g5vj",
        "discovery": "UNKNOWN"
      },
      "title": "Parse Server: GraphQL \"Did you mean\" validation suggestions disclose schema to unauthenticated callers"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-47248",
    "datePublished": "2026-06-12T18:21:31.511Z",
    "dateReserved": "2026-05-18T22:54:18.272Z",
    "dateUpdated": "2026-06-12T20:04:40.587Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

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