{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.17.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3607f79bb44c35d0be4fa8b6e24c0502b51415a9"
            },
            {
              "fixed": "d4a145c3ac68f08b9071dec0f2ac025c6dc7362d"
            }
          ],
          "repo": "https://github.com/cloudreve/cloudreve",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-g9j2-8w95-3vwv"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-400",
      "CWE-409",
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55497.json"
  },
  "details": "Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, the built-in thumbnail and avatar image decoders limit compressed file size but do not limit decoded pixel dimensions, allowing an authenticated user to submit a small PNG, JPEG, or GIF that triggers an unbounded allocation and terminates the Cloudreve process through fatal out-of-memory behavior. This issue is fixed in version 4.17.0.",
  "id": "CVE-2026-55497",
  "modified": "2026-08-02T03:32:10.304598666Z",
  "published": "2026-07-31T03:28:59.171Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cloudreve/cloudreve/releases/tag/4.17.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55497.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/cloudreve/cloudreve/security/advisories/GHSA-g9j2-8w95-3vwv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55497"
    },
    {
      "type": "FIX",
      "url": "https://github.com/cloudreve/cloudreve/commit/3607f79bb44c35d0be4fa8b6e24c0502b51415a9"
    }
  ],
  "schema_version": "1.8.0",
  "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": "Cloudreve: Server crash through image decompression/pixel bomb in thumbnail \u0026 avatar decoding (DoS)"
}