{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2025.3.1"
              },
              {
                "fixed": "2026.2.2"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "e24be2c8734a5405366ce4b1ce1014d2301e1e7e"
            },
            {
              "fixed": "9004ad2dd1b40d571b25f66dfe968606233f51a8"
            }
          ],
          "repo": "https://github.com/cryptpad/cryptpad",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "cisa-cg",
    "cwe_ids": [
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/51xxx/CVE-2025-51846.json"
  },
  "details": "CryptPad 2025.3.1 allows unbounded WebSocket frame flood. A remote, unauthenticated attacker can significantly degrade or deny service for all users of a CryptPad instance. Fixed in 2026.2.2.",
  "id": "CVE-2025-51846",
  "modified": "2026-07-15T01:48:51.980125523Z",
  "published": "2026-04-30T16:35:59.625Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cryptpad/cryptpad/pull/2239/changes/1e0c06ad8a0c5dab795f85f9730ec2693320c62e"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-119-01.json"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-51846"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/51xxx/CVE-2025-51846.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/JohnPerifanis/cryptpad-cve-2025-51846-advisory/blob/main/README.md"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-51846"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "CryptPad unbounded WebSocket frame flood"
}