{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2026.6.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "00c6210a591db2b0be438740d05b82070fa68ac6"
            },
            {
              "fixed": "d323fe00d04ac46ab0b4e66fce9169effaa8dfb7"
            },
            {
              "fixed": "2954dee1081e601b50b372d7a39e9be361a7c774"
            }
          ],
          "repo": "https://github.com/misskey-dev/misskey",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-2m5x-5mp6-6vpq"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-294"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57574.json"
  },
  "details": "Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerability in Time-based One-Time Password (TOTP) authentication in UserAuthService where insufficient validation of used tokens allows the reuse of a single-use code within its valid time step. If both credentials and a TOTP code are obtained concurrently, an attacker may reuse the code to perform unauthorized actions, potentially leading to account takeover. This issue is fixed in version 2026.6.0.",
  "id": "CVE-2026-57574",
  "modified": "2026-08-12T03:51:16.217080353Z",
  "published": "2026-07-10T20:55:49.896Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/misskey-dev/misskey/releases/tag/2026.6.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57574.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/misskey-dev/misskey/security/advisories/GHSA-2m5x-5mp6-6vpq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57574"
    },
    {
      "type": "FIX",
      "url": "https://github.com/misskey-dev/misskey/commit/00c6210a591db2b0be438740d05b82070fa68ac6"
    },
    {
      "type": "FIX",
      "url": "https://github.com/misskey-dev/misskey/commit/d323fe00d04ac46ab0b4e66fce9169effaa8dfb7"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Misskey: TOTP tokens can be reused"
}