CVE-2026-42600

MEDIUM

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

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 4.9
EPSS 0.0050
EPSS Percentile 38.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-22
Status published
Products (3)
minio/minio 0.0.0-20220724015452 - 0.0.0-20260414213245Go
minio/minio 2022-07-24t01-54-52z - 2026-04-14t21-32-45z
minio/minio >= RELEASE.2022-07-24T01-54-52Z, < RELEASE.2026-04-14T21-32-45Z
Published May 11, 2026
Tracked Since May 12, 2026