Vulnerability from bitnami_vulndb
Published
2024-03-06 10:57
Modified
2026-09-08 08:34
Summary
User privilege escalation in MinIO
Details

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.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "minio",
        "purl": "pkg:bitnami/minio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2021.12.27"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-43858"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "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.",
  "id": "BIT-minio-2021-43858",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2024-03-06T10:57:38.503Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abf"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/minio/minio/pull/13976"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/minio/minio/pull/7949"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18Z"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43858"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "User privilege escalation in MinIO"
}



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