CVE-2023-28433

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Minio is a Multi-Cloud Object Storage framework. All users on Windows prior to version RELEASE.2023-03-20T20-16-18Z are impacted. MinIO fails to filter the `\` character, which allows for arbitrary object placement across buckets. As a result, a user with low privileges, such as an access key, service account, or STS credential, which only has permission to `PutObject` in a specific bucket, can create an admin user. This issue is patched in RELEASE.2023-03-20T20-16-18Z. There are no known workarounds.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-668

Affected software

VendorProductVersions
miniominio< RELEASE.2023-03-20T20-16-18Z

References

Timeline

Published
Mar 22, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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