Description
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.
Published: 2026-05-11
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-xh8f-g2qw-gcm7 MinIO vulnerable to Path Traversal via msgpack Body in `ReadMultiple` Storage-REST Endpoint
History

Fri, 15 May 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 11 May 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Minio
Minio minio
Vendors & Products Minio
Minio minio

Mon, 11 May 2026 21:30:00 +0000

Type Values Removed Values Added
Description 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.
Title MinIO: Path Traversal via msgpack Body in `ReadMultiple` Storage-REST Endpoint
Weaknesses CWE-22
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-15T18:24:49.669Z

Reserved: 2026-04-29T00:31:15.725Z

Link: CVE-2026-42600

cve-icon Vulnrichment

Updated: 2026-05-15T18:24:46.219Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-11T22:22:11.567

Modified: 2026-05-13T18:26:47.613

Link: CVE-2026-42600

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-11T23:30:02Z

Weaknesses