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Privilege Escalation via Dropped Field-Level @authentication

Type: advisorySources: OSV

@neo4j/graphql from 5.2.0 until the patched versions fails to enforce field-level @authentication rules on root custom-resolver fields when a type-level @authentication rule is also present on the same operation type. When both a type-level @authentication (on Query/Mutation) and a field-level @authentication (on a root custom-resolver field within that type) are declared, only the type-level rule is evaluated and the field-level rule is silently discarded. As a result a stricter per-field requirement — such as an admin-role JWT claim (jwt: { roles_INCLUDES: "admin" }) — is never checked, and any client that satisfies the coarser type-level requirement can invoke the more-restricted field. No token forgery is involved: a legitimately issued, correctly signed non-admin token (e.g. roles: ["user"]) is sufficient.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-19869
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 00:51 UTC · Revision 1

Source evidence

Privilege Escalation via Dropped Field-Level @authentication

core-osv · Original source

Published 18 Aug 2026, 16:35 UTC

@neo4j/graphql from 5.2.0 until the patched versions fails to enforce field-level @authentication rules on root custom-resolver fields when a type-level @authentication rule is also present on the same operation type. When both a type-level @authentication (on Query/Mutation) and a field-level @authentication (on a root custom-resolver field within that type) are declared, only the type-level rule is evaluated and the field-level rule is silently discarded. As a result a stricter per-field requirement — such as an admin-role JWT claim (jwt: { roles_INCLUDES: "admin" }) — is never checked, and any client that satisfies the coarser type-level requirement can invoke the more-restricted field. No token forgery is involved: a legitimately issued, correctly signed non-admin token (e.g. roles: ["user"]) is sufficient.

osv:CVE-2026-19869
Complete source record
{
  "id": "e0cc5f2d99be91430f1842220c2c21744e8c542c84a2735f9df3df83805e6eed",
  "url": "https://osv.dev/vulnerability/CVE-2026-19869",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Privilege Escalation via Dropped Field-Level @authentication",
    "summary": "@neo4j/graphql from 5.2.0 until the patched versions fails to enforce field-level @authentication rules on root custom-resolver fields when a type-level @authentication rule is also present on the same operation type. When both a type-level @authentication (on Query/Mutation) and a field-level @authentication (on a root custom-resolver field within that type) are declared, only the type-level rule is evaluated and the field-level rule is silently discarded. As a result a stricter per-field requirement — such as an admin-role JWT claim (jwt: { roles_INCLUDES: \"admin\" }) — is never checked, and any client that satisfies the coarser type-level requirement can invoke the more-restricted field. No token forgery is involved: a legitimately issued, correctly signed non-admin token (e.g. roles: [\"user\"]) is sufficient.",
    "evidence": "osv:CVE-2026-19869",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-19869",
      "aliases": [
        "CVE-2026-19869",
        "GHSA-82m8-p9px-c3x5"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/neo4j/graphql",
              "type": "GIT",
              "events": [
                {
                  "introduced": "16bb032f8a6ffa1d3348a228c6f2b89eeefdb4a5"
                },
                {
                  "fixed": "7f434467ffc60321bf9fa5500a012b7897153971"
                },
                {
                  "introduced": "663f1cd08fcfbbb8b2373453feb86ec9390e1e64"
                },
                {
                  "fixed": "40dbc3eb080d28a94a9493452ecc9cc8130460ea"
                },
                {
                  "introduced": "2d8a04046d6735b5abd8510a68f1a90ef585675d"
                },
                {
                  "last_affected": "02c5a802f5d2f689bf4751cd6109513479518bd4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "7.0.0"
                      },
                      {
                        "fixed": "7.6.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "5.2.0"
                      },
                      {
                        "fixed": "5.12.15"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "6.0.0"
                      },
                      {
                        "last_affected": "6.6.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19869.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.525804548Z",
      "provider": "osv",
      "references": [
        "https://registry.npmjs.org",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19869.json",
        "https://github.com/neo4j/graphql/security/advisories/GHSA-82m8-p9px-c3x5",
        "https://neo4j.com/security/CVE-2026-19869",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-19869",
        "https://github.com/neo4j/graphql"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-639"
        ],
        "cna_assigner": "Neo4j",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19869.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-19869",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 516756,
  "published_at": "2026-08-18T16:35:19.878+00:00"
}