{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.24"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "05ed5c9ae8a2a45101b52b61d02f170d20d587ff"
            },
            {
              "fixed": "4bac9985b4a02af8e8df22454cdf63de2a247b49"
            }
          ],
          "repo": "https://github.com/seaweedfs/seaweedfs",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-gv5w-hfx8-8cwq"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72921.json"
  },
  "details": "SeaweedFS is a distributed storage system. Prior to 4.24, the weed/server/filer_server_handlers.go allowed_prefixes authorization check used strings.HasPrefix on raw path strings, so a filer JWT scoped to /tenant1 also authorized sibling paths such as /tenant1234, /tenant1-old, and /tenant1backup, enabling cross-tenant reads and writes with a valid scoped token. This issue is fixed in version 4.24.",
  "id": "CVE-2026-72921",
  "modified": "2026-09-11T03:30:46.313084719Z",
  "published": "2026-08-11T14:28:49.398Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/seaweedfs/seaweedfs/releases/tag/4.24"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72921.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-gv5w-hfx8-8cwq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72921"
    },
    {
      "type": "FIX",
      "url": "https://github.com/seaweedfs/seaweedfs/commit/05ed5c9ae8a2a45101b52b61d02f170d20d587ff"
    },
    {
      "type": "FIX",
      "url": "https://github.com/seaweedfs/seaweedfs/pull/9439"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SeaweedFS: Filer JWT allowed_prefixes literal prefix match allows cross-tenant access to sibling paths"
}