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TI-2026-30880 Aliases CVE-2026-42600GHSA-xh8f-g2qw-gcm7

MinIO: Path Traversal via msgpack Body in `ReadMultiple` Storage-REST Endpoint

Priority MEDIUM 42CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.

Summary

MinIO is a high-performance object storage system. From RELEASE.2022-07-24T01-54-52Z to before RELEASE.2026-04-14T21-32-45Z, A path traversal vulnerability in MinIO's ReadMultiple internode storage-REST endpoint allows a caller holding the cluster root JWT to read files from outside the configured drive roots, bounded only by the MinIO process UID. The attacker sends POST minio/storage/{drivePath}/v63/rmpl with a msgpack-encoded body carrying ../ sequences in the Bucket field. The server opens the resulting path via os.OpenFile with O_RDONLY|O_NOATIME and returns its contents in the msgpack response stream. This vulnerability is fixed in RELEASE.2026-04-14T21-32-45Z.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.08695 95th percentileScored 2026-11-07
Fix Fixed github.com/minio/minio (Go): 0.0.0-20260414213245

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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.2022-07-24T01-54-52Z, < RELEASE.2026-04-14T21-32-45Z—No fix listedCNA
—github.com/minio/minio (Go)0.0.0-20220724015452 to before 0.0.0-202604142132450.0.0-20260414213245Patch availableGHSA-xh8f-g2qw-gcm7
  • minio VendorMinIO Affected >= RELEASE.2022-07-24T01-54-52Z, < RELEASE.2026-04-14T21-32-45Z Fixed in — No fix listed CNA
  • github.com/minio/minio (Go) Vendor— Affected 0.0.0-20220724015452 to before 0.0.0-20260414213245 Fixed in 0.0.0-20260414213245 Patch available GHSA-xh8f-g2qw-gcm7

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*2022-07-24t01-54-52z to before 2026-04-14t21-32-45zVulnerableMinIO
  • cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:* Versions 2022-07-24t01-54-52z to before 2026-04-14t21-32-45z Vulnerable ·MinIO

Remediation

  • Fix · GHSA-xh8f-g2qw-gcm7 github.com/minio/minio (Go) Fixed in 0.0.0-20260414213245 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42600
  2. 2026-10-03 Alias added: GHSA-xh8f-g2qw-gcm7
  3. 2026-10-25 EPSS moved to the 95th–99th percentile
  4. 2026-10-25 Priority changed: LOW → MEDIUM

References

Patch 1

Advisory 1

Other 1

  • 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-2022-13073 Possible DDOS by establishing keep-alive connections with anonymous HTTP clients in MinIO CVSS 3.1HIGH 7.5
See all 22 →

Sources

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