Description
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.
References (4)
Core 4
Core References
Third Party Advisory x_refsource_confirm
https://github.com/minio/minio/security/advisories/GHSA-hq5j-6r98-9m8v
Exploit, Third Party Advisory x_refsource_misc
https://github.com/minio/minio/pull/11682
Patch, Third Party Advisory x_refsource_misc
https://github.com/minio/minio/commit/039f59b552319fcc2f83631bb421a7d4b82bc482
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/minio/minio/releases/tag/RELEASE.2021-03-04T00-53-13Z
Scores
CVSS v3
7.7
EPSS
0.0010
EPSS Percentile
27.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Details
CWE
CWE-285
CWE-863
Status
published
Products (1)
minio/minio
< 2021-03-04t00-53-13z
Published
Mar 08, 2021
Tracked Since
Feb 18, 2026