{"id":"BIT-minio-2026-42600","summary":"MinIO: Path Traversal via msgpack Body in `ReadMultiple` Storage-REST Endpoint","details":"MinIO is a high-performance object storage system. From 2022.07.24 to before 2026.04.14, 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 2026.04.14.","aliases":["CVE-2026-42600","GHSA-xh8f-g2qw-gcm7","GO-2026-5757"],"modified":"2026-09-08T08:48:13.541473494Z","published":"2026-05-13T15:13:37.429Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:minio:minio:*:*:*:*:*:go:*:*"]},"references":[{"type":"ADVISORY","url":"https://github.com/minio/minio/security/advisories/GHSA-xh8f-g2qw-gcm7"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42600"}],"affected":[{"package":{"name":"minio","ecosystem":"Bitnami","purl":"pkg:bitnami/minio"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2022.07.24"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/minio/BIT-minio-2026-42600.json"},"severity":[{"type":"CVSS_V4","score":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}