{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "20ea9a25353129b56d46951fe7d23939665ab2b2"
            },
            {
              "fixed": "494a0c1073b460d4d2a5c03ff3567fc388b91e36"
            }
          ],
          "repo": "https://github.com/nextcloud/server",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-9wmj-gp8v-477j"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28644.json"
  },
  "details": "Nextcloud server is an open source home cloud implementation. In releases of the 25.0.x branch before 25.0.3 an inefficient fetch operation may impact server performances and/or can lead to a denial of service. This issue has been addressed and it is recommended that the Nextcloud Server is upgraded to 25.0.3. There are no known workarounds for this vulnerability.\n",
  "id": "CVE-2023-28644",
  "modified": "2026-04-01T23:08:13.408887927Z",
  "published": "2023-03-30T18:36:27.380Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28644.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9wmj-gp8v-477j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28644"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nextcloud/server/pull/36016"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Reference fetch can saturate the server bandwidth for 10 seconds in nextcloud server"
}