CVE-2021-21362

    Dashboard / Vulnerabilities / CVE-2021-21362

    CVE-2021-21362

    Published: 8 Mar 2021Last Modified: 9 Jul 2026

    Summary:

    Details: 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: 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, https://github.com/minio/minio/pull/11682

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -c3217bd6ebc0ecdad45219d6a46c06a54c4405f2

    Affected versions

    RELEASE.2021-03-01T04-20-55Z

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-21362 | CVE-DB