{"id":"BIT-minio-2025-31489","summary":"MinIO performs incomplete signature validation for unsigned-trailer uploads","details":"MinIO is a High Performance Object Storage released under GNU Affero General Public License v3.0. The signature component of the authorization may be invalid, which would mean that as a client you can use any arbitrary secret to upload objects given the user already has prior WRITE permissions on the bucket. Prior knowledge of access-key, and bucket name this user might have access\nto - and an access-key with a WRITE permissions is necessary. However with relevant information in place, uploading random objects to buckets is trivial and easy via curl. This issue is fixed in RELEASE.2025-04-03T14-56-28Z.","aliases":["CVE-2025-31489","GHSA-wg47-6jq2-q2hh","GO-2025-3594"],"modified":"2025-05-20T10:02:07.006Z","published":"2025-04-14T11:14:54.951Z","database_specific":{"cpes":["cpe:2.3:a:minio:minio:*:*:*:*:*:go:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://github.com/minio/minio/pull/21103"},{"type":"WEB","url":"https://github.com/minio/minio/security/advisories/GHSA-wg47-6jq2-q2hh"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-31489"}],"affected":[{"package":{"name":"minio","ecosystem":"Bitnami","purl":"pkg:bitnami/minio"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2023.12.23"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/minio/BIT-minio-2025-31489.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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":"1.7.3"}