CVE-2026-19869 (GCVE-0-2026-19869)

Vulnerability from cvelistv5 – Published: 2026-08-18 16:35 – Updated: 2026-08-19 16:02
VLAI
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.
Severity
7.6 (High)
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
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:09 UTC
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
Assigner
Neo4j CNA under the mitre root
CNA scorecard – unranked: 5 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
neo4j graphql Affected: 7.0.0 , < 7.6.0 (semver)
Affected: 5.2.0 , < 5.12.15 (semver)
Affected: 6.0.0 , ≤ 6.6.4 (semver)
    cpe:2.3:a:neo4j:graphql:*:*:*:*:*:*:*:*
    cpe:2.3:a:neo4j:graphql:*:*:*:*:*:*:*:*
    cpe:2.3:a:neo4j:graphql:*:*:*:*:*:*:*:*
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                  "value": "\u003ccode\u003e@neo4j/graphql\u003c/code\u003e\u0026nbsp;from\u0026nbsp;\u003ccode\u003e5.2.0\u003c/code\u003e\u0026nbsp;until the patched versions fails to enforce field-level\u0026nbsp;\u003ccode\u003e@authentication\u003c/code\u003e\u0026nbsp;rules on root custom-resolver fields when a type-level\u0026nbsp;\u003ccode\u003e@authentication\u003c/code\u003e\u0026nbsp;rule is also present on the same operation type. When both a type-level\u0026nbsp;\u003ccode\u003e@authentication\u003c/code\u003e\u0026nbsp;(on\u0026nbsp;\u003ccode\u003eQuery\u003c/code\u003e/\u003ccode\u003eMutation\u003c/code\u003e) and a field-level\u0026nbsp;\u003ccode\u003e@authentication\u003c/code\u003e\u0026nbsp;(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 \u2014 such as an admin-role JWT claim (\u003ccode\u003ejwt: { roles_INCLUDES: \"admin\" }\u003c/code\u003e) \u2014 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.\u0026nbsp;\u003ccode\u003eroles: [\"user\"]\u003c/code\u003e) is sufficient."
                }
              ],
              "value": "@neo4j/graphql\u00a0from\u00a05.2.0\u00a0until the patched versions fails to enforce field-level\u00a0@authentication\u00a0rules on root custom-resolver fields when a type-level\u00a0@authentication\u00a0rule is also present on the same operation type. When both a type-level\u00a0@authentication\u00a0(on\u00a0Query/Mutation) and a field-level\u00a0@authentication\u00a0(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 \u2014 such as an admin-role JWT claim (jwt: { roles_INCLUDES: \"admin\" }) \u2014 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.\u00a0roles: [\"user\"]) is sufficient."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-233",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-233 Privilege Escalation"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "baseScore": 7.6,
                "baseSeverity": "HIGH",
                "exploitMaturity": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "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",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-639",
                  "description": "CWE-639 Authorization bypass through User-Controlled key",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-18T16:35:19.878Z",
            "orgId": "3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6",
            "shortName": "Neo4j"
          },
          "references": [
            {
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://github.com/neo4j/graphql/security/advisories/GHSA-82m8-p9px-c3x5"
            },
            {
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://neo4j.com/security/CVE-2026-19869"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eUpgrade the library to\u0026nbsp;\u003ccode\u003e7.5.7\u003c/code\u003e+ or\u0026nbsp;\u003ccode\u003e5.12.15\u003c/code\u003e+. v6 is end-of-life and will not receive a fix. v5 releases prior to\u0026nbsp;\u003ccode\u003e5.2.0\u003c/code\u003e\u0026nbsp;are not affected.\u003c/p\u003e\u003cp\u003eFor users who cannot upgrade immediately: do not combine a type-level\u0026nbsp;\u003ccode\u003e@authentication\u003c/code\u003e\u0026nbsp;with a field-level\u0026nbsp;\u003ccode\u003e@authentication\u003c/code\u003e\u0026nbsp;on the same root operation type. Because the type-level annotation is what shadows the field-level rule, removing it restores correct enforcement \u2014 instead apply a complete\u0026nbsp;\u003ccode\u003e@authentication\u003c/code\u003e\u0026nbsp;directive to each root field individually, including the full stricter rule on the sensitive field. Alternatively, enforce the stricter requirement inside the custom resolver\u0027s own code.\u003c/p\u003e"
                }
              ],
              "value": "Upgrade the library to\u00a07.5.7+ or\u00a05.12.15+. v6 is end-of-life and will not receive a fix. v5 releases prior to\u00a05.2.0\u00a0are not affected.\n\n\n\nFor users who cannot upgrade immediately: do not combine a type-level\u00a0@authentication\u00a0with a field-level\u00a0@authentication\u00a0on the same root operation type. Because the type-level annotation is what shadows the field-level rule, removing it restores correct enforcement \u2014 instead apply a complete\u00a0@authentication\u00a0directive to each root field individually, including the full stricter rule on the sensitive field. Alternatively, enforce the stricter requirement inside the custom resolver\u0027s own code."
            }
          ],
          "source": {
            "discovery": "INTERNAL"
          },
          "title": "Privilege Escalation via Dropped Field-Level @authentication",
          "x_generator": {
            "engine": "Vulnogram 1.0.4"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6",
        "assignerShortName": "Neo4j",
        "cveId": "CVE-2026-19869",
        "datePublished": "2026-08-18T16:35:19.878Z",
        "dateReserved": "2026-08-14T11:22:26.042Z",
        "dateUpdated": "2026-08-18T19:09:31.066Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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