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Critical

Parse Server 9.0.0 before 9.10.5-alpha.2 Authentication Bypass via AuthAdapter Subclasses

Type: advisorySources: Official CVE List

Parse Server before 8.6.102 and 9.0.0 before 9.10.5-alpha.2 contains an authentication bypass because the validateSetUp, validateLogin, and validateUpdate methods of custom adapters subclassing AuthAdapter are never called, and an inherited default that accepts any authData is used instead. Attackers can supply arbitrary authData to sign up, link identities, log in as existing users, or skip custom additional authentication factors.

Products
parse-server
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-116163
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 13:43 UTC · Revision 1

Source evidence

Parse Server 9.0.0 before 9.10.5-alpha.2 Authentication Bypass via AuthAdapter Subclasses

core-cve · Original source

Published 25 Oct 2026, 13:20 UTC

Parse Server before 8.6.102 and 9.0.0 before 9.10.5-alpha.2 contains an authentication bypass because the validateSetUp, validateLogin, and validateUpdate methods of custom adapters subclassing AuthAdapter are never called, and an inherited default that accepts any authData is used instead. Attackers can supply arbitrary authData to sign up, link identities, log in as existing users, or skip custom additional authentication factors.

cve:CVE-2026-116163

parse-server

Fixed versions: Not specified

parse-server

Fixed versions: Not specified

Complete source record
{
  "id": "bde46c7df2ddb6b3a7f20754a304347e18fb9cdd8b3550fdb3f460186cea3ba8",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-116163",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Parse Server 9.0.0 before 9.10.5-alpha.2 Authentication Bypass via AuthAdapter Subclasses",
    "summary": "Parse Server before 8.6.102 and 9.0.0 before 9.10.5-alpha.2 contains an authentication bypass because the validateSetUp, validateLogin, and validateUpdate methods of custom adapters subclassing AuthAdapter are never called, and an inherited default that accepts any authData is used instead. Attackers can supply arbitrary authData to sign up, link identities, log in as existing users, or skip custom additional authentication factors.",
    "evidence": "cve:CVE-2026-116163",
    "products": [
      {
        "name": {
          "value": "parse-server",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "parse-server",
          "evidence": "/containers/cna/affected/1/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-116163",
      "aliases": [
        "CVE-2026-116163"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 9.1,
            "attackVector": "NETWORK",
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "privilegesRequired": "NONE",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH"
          }
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 7.4,
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "integrityImpact": "HIGH",
            "userInteraction": "NONE",
            "attackComplexity": "HIGH",
            "availabilityImpact": "NONE",
            "privilegesRequired": "NONE",
            "confidentialityImpact": "HIGH"
          }
        }
      ],
      "affected": [
        {
          "vendor": "parse-community",
          "product": "parse-server",
          "versions": [
            {
              "status": "affected",
              "version": "9.0.0",
              "lessThan": "9.10.5-alpha.2",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "9.10.5-alpha.2",
              "versionType": "semver"
            }
          ],
          "packageURL": "pkg:npm/parse-server",
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "parse-community",
          "product": "parse-server",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "8.6.102",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "8.6.102",
              "versionType": "semver"
            }
          ],
          "packageURL": "pkg:npm/parse-server",
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-26T16:47:58.712Z",
      "provider": "cve",
      "references": [
        "https://github.com/parse-community/parse-server/security/advisories/GHSA-rq3w-5c6f-p7wr",
        "https://www.vulncheck.com/advisories/parse-server-9.0.0-before-9.10.5-alpha.2-authentication-bypass-via-authadapter-subclasses"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-116163",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-26T15:40:04.695657Z"
                  }
                }
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-26T16:47:58.712Z"
            }
          }
        ],
        "cna": {
          "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
          "shortName": "VulnCheck",
          "dateUpdated": "2026-10-25T13:20:07.658Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-116163",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 320605,
  "published_at": "2026-10-25T13:20:07.658+00:00"
}