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TI-2025-22670 Aliases CVE-2025-31489GHSA-wg47-6jq2-q2hh

MinIO performs incomplete signature validation for unsigned-trailer uploads

Priority MEDIUM 48CWE-347Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-347.

Summary

MinIO is a High Performance Object Storage released under GNU Affero General Public License v3.0. The signature component of the authorization may be invalid, which would mean that as a client you can use any arbitrary secret to upload objects given the user already has prior WRITE permissions on the bucket. Prior knowledge of access-key, and bucket name this user might have access to - and an access-key with a WRITE permissions is necessary. However with relevant information in place, uploading random objects to buckets is trivial and easy via curl. This issue is fixed in RELEASE.2025-04-03T14-56-28Z.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02519 84th percentileScored 2026-11-07
Fix Fixed github.com/minio/minio (Go): 0.0.0-20250403145552-8c70975283f9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

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.2025-04-03T14-56-28Z—No fix listedCNA
—github.com/minio/minio (Go)before 0.0.0-20250403145552-8c70975283f90.0.0-20250403145552-8c70975283f9Patch availableGHSA-wg47-6jq2-q2hh
  • minio VendorMinIO Affected < RELEASE.2025-04-03T14-56-28Z Fixed in — No fix listed CNA
  • github.com/minio/minio (Go) Vendor— Affected before 0.0.0-20250403145552-8c70975283f9 Fixed in 0.0.0-20250403145552-8c70975283f9 Patch available GHSA-wg47-6jq2-q2hh

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*——MinIO
  • cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:* Versions — — ·MinIO

Remediation

  • Fix · GHSA-wg47-6jq2-q2hh github.com/minio/minio (Go) Fixed in 0.0.0-20250403145552-8c70975283f9 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 2 products
  • Network Observability Operator
  • Red Hat OpenShift distributed tracing 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-31489
  2. 2026-10-03 Alias added: GHSA-wg47-6jq2-q2hh

References

Advisory 1

Other 4

  • TI-2023-12978 MinIO is vulnerable to privilege escalation on Linux/MacOS KEVCVSS 3.1HIGH 8.8
  • 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-2021-18098 Authentication bypass issue in the Operator Console CVSS 3.1CRITICAL 9.8
See all 32 →

Sources

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