{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "6.0.0-alpha.1"
              },
              {
                "fixed": "6.2.3"
              },
              {
                "introduced": "0"
              },
              {
                "fixed": "5.4.31"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "b5217ef60c4e98369139245156dd6d9ab997f812"
            },
            {
              "fixed": "0b48e510a1e72daeea07193c256e187358bca1ef"
            },
            {
              "introduced": "0"
            },
            {
              "fixed": "ba3095f896ff72cd8a546c3e0e745a32406da28a"
            }
          ],
          "repo": "https://github.com/nuts-foundation/nuts-node",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-9hmg-827w-9rhj"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-345"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41164.json"
  },
  "details": "nuts-node is the reference implementation of the Nuts specification. Prior to 6.2.3 and 5.4.31, the v1 access token introspection endpoint (/auth/v1/introspect_access_token) accepts any JWT signed by a key present on the node, without validating the JWT type, issuer-to-key binding, or required claims. This allows a Verifiable Presentation (VP) JWT to be replayed as an access token and receive an active: true introspection response. This vulnerability is fixed in 6.2.3 and 5.4.31.",
  "id": "CVE-2026-41164",
  "modified": "2026-07-27T03:56:35.839434653Z",
  "published": "2026-05-26T17:35:59.019Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41164.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nuts-foundation/nuts-node/security/advisories/GHSA-9hmg-827w-9rhj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41164"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "nuts-node: JWT type confusion in v1 access token introspection allows VP replay as access token"
}