CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2021-43858
High (8.8) in minio minio. EPSS 35% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 35% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-863, CWE-269
- Published
- Modified
- Record from
- the NVD, synced
Affected
- minio:minio
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