CVE-2026-42600
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.
How to fix
- minio minio2026-04-14t21-32-45z or later
- github.com/minio/minio0.0.0-20260414213245 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| minio minio | 2022-07-24t01-54-52z ≤ v < 2026-04-14t21-32-45z | 2026-04-14t21-32-45z |
| github.com/minio/minioGo | 0.0.0-20220724015452 ≤ v < 0.0.0-20260414213245, No range specified | 0.0.0-20260414213245 |
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