User privilege escalation in MinIO

{
  "id": "55d2ac728ef13c83fb29823cd0a95e02d3a19c9f0cd914b0046503e52a251a1e",
  "url": "https://osv.dev/vulnerability/BIT-minio-2021-43858",
  "method": "structured",
  "payload": {
    "kind": "withdrawal",
    "title": "User privilege escalation in MinIO",
    "summary": "MinIO is a Kubernetes native application for cloud storage. Prior to version `RELEASE.2021-12-27T07-23-18Z`, a malicious client can hand-craft an HTTP API call that allows for updating policy for a user and gaining higher privileges. The patch in version `RELEASE.2021-12-27T07-23-18Z` changes the accepted request body type and removes the ability to apply policy changes through this API. There is a workaround for this vulnerability: Changing passwords can be disabled by adding an explicit `Deny` rule to disable the API for users.",
    "evidence": "osv:BIT-minio-2021-43858",
    "products": [
      {
        "name": {
          "value": "minio",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2021.12.27",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "BIT-minio-2021-43858",
      "aliases": [
        "BIT-minio-2021-43858"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2021.12.27"
                }
              ]
            }
          ],
          "package": {
            "name": "minio",
            "purl": "pkg:bitnami/minio",
            "ecosystem": "Bitnami"
          },
          "severity": [
            {
              "type": "CVSS_V3",
              "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
            }
          ],
          "database_specific": {
            "source": "https://github.com/bitnami/vulndb/tree/main/data/minio/BIT-minio-2021-43858.json"
          }
        }
      ],
      "modified": "2026-10-08T08:11:02.807624929Z",
      "provider": "osv",
      "references": [
        "https://github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abf",
        "https://github.com/minio/minio/pull/13976",
        "https://github.com/minio/minio/pull/7949",
        "https://github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18Z",
        "https://github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx",
        "https://nvd.nist.gov/vuln/detail/CVE-2021-43858"
      ],
      "provider_metadata": {
        "cpes": [
          "cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*"
        ],
        "severity": "High"
      }
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 98776,
  "published_at": "2024-03-06T10:57:38.503+00:00"
}