Fides: Privacy Request Identity Verification Bypass Vulnerability via Duplicate Detection

{
  "id": "70aebe2d679c79f24bffa535d409b6d5e13a570cc10f7a03a7b83fd7ead6561d",
  "url": "https://osv.dev/vulnerability/CVE-2026-42303",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Fides: Privacy Request Identity Verification Bypass Vulnerability via Duplicate Detection",
    "summary": "Fides is an open-source privacy engineering platform. From 2.75.0 to before 2.83.2, Fides deployments that enable both subject identity verification and duplicate privacy request detection are affected by a vulnerability in which an administrator can approve a privacy request whose identity was never verified. For erasure policies, this can result in unauthorized deletion of a data subject's records across every integration configured in the affected deployment. This vulnerability is fixed in 2.83.2.",
    "evidence": "osv:CVE-2026-42303",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-42303",
      "aliases": [
        "CVE-2026-42303",
        "GHSA-qx5f-ghc2-7g5c",
        "PYSEC-2026-2471"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:H/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ethyca/fides",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fa23c88f12f05de3c097d4f089574b18d65d2498"
                },
                {
                  "fixed": "bbd7f9881bb94aaa80e0c3784586e3c3f626713c"
                },
                {
                  "fixed": "0e320b20934eb5af3a3d5127dba2691605d7ff37"
                },
                {
                  "fixed": "e7a6527b0f9fdc9887b86a89bb5453e7421882dd"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.75.0"
                      },
                      {
                        "fixed": "2.83.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "0e320b20934eb5af3a3d5127dba2691605d7ff37"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e7a6527b0f9fdc9887b86a89bb5453e7421882dd"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "bbd7f9881bb94aaa80e0c3784586e3c3f626713c"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2.83.2"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42303.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.141311237Z",
      "provider": "osv",
      "references": [
        "https://github.com/ethyca/fides/releases/tag/2.83.2",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42303.json",
        "https://github.com/ethyca/fides/security/advisories/GHSA-qx5f-ghc2-7g5c",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-42303",
        "https://github.com/ethyca/fides/commit/0e320b20934eb5af3a3d5127dba2691605d7ff37",
        "https://github.com/ethyca/fides/commit/e7a6527b0f9fdc9887b86a89bb5453e7421882dd",
        "https://github.com/ethyca/fides/pull/7971",
        "https://github.com/ethyca/fides/pull/7972"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-288",
          "CWE-306",
          "CWE-841"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42303.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-42303",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 519834,
  "published_at": "2026-05-12T17:29:22.285+00:00"
}