CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NCVE-2021-21362
Medium (6.5) in minio minio. EPSS 1.3% chance of exploitation in the next 30 days.
MinIO is an open-source high performance object storage service and it is API compatible with Amazon S3 cloud storage service. In MinIO before version RELEASE.2021-03-04T00-53-13Z it is possible to bypass a readOnly policy by creating a temporary 'mc share upload' URL. Everyone is impacted who uses MinIO multi-users. This is fixed in version RELEASE.2021-03-04T00-53-13Z. As a workaround, one can disable uploads with `Content-Type: multipart/form-data` as mentioned in the S3 API RESTObjectPOST docs by using a proxy in front of MinIO.
Severity
- EPSS
- 1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-863, CWE-285
- Published
- Modified
- Record from
- the NVD, synced
Affected
- minio:minio
References
- https://github.com/minio/minio/commit/039f59b552319fcc2f83631bb421a7d4b82bc482
- https://github.com/minio/minio/pull/11682
- https://github.com/minio/minio/releases/tag/RELEASE.2021-03-04T00-53-13Z
- https://github.com/minio/minio/security/advisories/GHSA-hq5j-6r98-9m8v
- https://github.com/minio/minio/commit/039f59b552319fcc2f83631bb421a7d4b82bc482