{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "edumfa"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-18T15:35:42Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\nIf the resolver parameter is passed, but the user does not exist, all failcounters of tokens in that resolver will be increased.\n\n### Patches\nThis, along with other issues, was fixed in eduMFA v2.9.1.\n\n### Workarounds\nLimiting access to `/validate/check` to client applications (i.e. Shibboleth/FreeRADIUS) using an authorization policy with `api_key_required` or using e.g. the reverse proxy.",
  "id": "GHSA-74r7-3mjm-jc5v",
  "modified": "2026-05-18T15:35:42Z",
  "published": "2026-05-18T15:35:42Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/eduMFA/eduMFA/security/advisories/GHSA-74r7-3mjm-jc5v"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/eduMFA/eduMFA"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "eduMFA: Unauthenticated Failcounter Increment on Resolver Tokens via /validate/check"
}