{"id":"BIT-minio-2021-43858","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.","aliases":["CVE-2021-43858","GHSA-j6jc-jqqc-p6cx"],"modified":"2026-09-08T08:48:13.229436813Z","published":"2024-03-06T10:57:38.503Z","database_specific":{"cpes":["cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*"],"severity":"High"},"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"}],"affected":[{"package":{"name":"minio","ecosystem":"Bitnami","purl":"pkg:bitnami/minio"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2021.12.27"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/minio/BIT-minio-2021-43858.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}