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TI-2023-12978 Aliases CVE-2023-28434GHSA-2pxw-r47w-4p8c

MinIO is vulnerable to privilege escalation on Linux/MacOS

Priority CRITICAL 97Exploited in the wildCWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-269.

Summary

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 in RELEASE.2023-03-20T20-16-18Z. As a workaround, enable browser API access and turn off `MINIO_BROWSER=off`.

Why it matters now

Exploitation Active In CISA KEV since 2023-09-19CISA due date 2023-10-10
EPSS 0.07917 94th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed github.com/minio/minio (Go): 0.0.0-202303200415

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MinIOminio< RELEASE.2023-03-20T20-16-18Z—No fix listedCNA
—github.com/minio/minio (Go)before 0.0.0-2023032004150.0.0-202303200415Patch availableGHSA-2pxw-r47w-4p8c
  • minio VendorMinIO Affected < RELEASE.2023-03-20T20-16-18Z Fixed in — No fix listed CNA
  • github.com/minio/minio (Go) Vendor— Affected before 0.0.0-202303200415 Fixed in 0.0.0-202303200415 Patch available GHSA-2pxw-r47w-4p8c

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*before 2023-03-20t20-16-18zVulnerableMinIO
  • cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:* Versions before 2023-03-20t20-16-18z Vulnerable ·MinIO

Remediation

  • Fix · GHSA-2pxw-r47w-4p8c github.com/minio/minio (Go) Fixed in 0.0.0-202303200415 Advisory →

Timeline

  1. 2023-09-19 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2023-28434
  3. 2026-10-03 Alias added: GHSA-2pxw-r47w-4p8c

References

Exploit 1

Patch 1

Advisory 2

Other 2

  • TI-2023-12976 Minio Information Disclosure in Cluster Deployment KEVCVSS 3.1HIGH 7.5
  • TI-2023-11082 Allowed DELETE on resources on object locked buckets under Governance mode in Minio CVSS 3.1HIGH 8.8
  • TI-2024-16264 MinIO unsafe default: Access keys inherit `admin` of root user, allowing privilege escalation CVSS 3.1HIGH 8.8
  • TI-2022-08654 Improper Privilege Management in MinIO CVSS 3.1HIGH 8.8
  • TI-2022-13073 Possible DDOS by establishing keep-alive connections with anonymous HTTP clients in MinIO CVSS 3.1HIGH 7.5
  • TI-2022-16346 Authenticated requests for server update admin API allows path traversal in minio CVSS 3.1HIGH 7.4
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences