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Servers and applications

CVE-2023-28434

Minio is a Multi-Cloud Object Storage framework. Prior to RELEASE.2023-03-20T20-16-18Z, an attacker can use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket`. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access. This issue has been patched…

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 19 Sept 2023.

Severity
High 8.8
Published
22 Mar 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2023-03-20t20-16-18z
Sources
NVD

Affected software

SoftwareAffected versions
MinIOServers and applications · cpe:a:minio:minio
  • Every version before 2023-03-20t20-16-18z

Known exploited

CISA name
MinIO Security Feature Bypass Vulnerability
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due for US agencies
10 Oct 2023
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-28434
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-28434