{"id":"CVE-2025-31489","revision":"01b73c7a329d427e8d60e9d571e8b701","records":[{"revision":"01b73c7a329d427e8d60e9d571e8b701","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-31489","aliases":[],"title":"MinIO performs incomplete signature validation for unsigned-trailer uploads","description":"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.","state":0,"publishedAt":"2025-04-03T19:36:09.335+00:00","modifiedAt":"2025-04-03T20:36:19.079+00:00","affected":[{"ecosystem":"Vendor product","name":"minio","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"minio\",\n                    \"product\": \"minio\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< RELEASE.2025-04-03T14-56-28Z\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":8.7,"severity":"HIGH"}],"references":["https://github.com/minio/minio/security/advisories/GHSA-wg47-6jq2-q2hh","https://github.com/minio/minio/pull/21103"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-31489","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-31489","identifiers":["CVE-2025-31489"]},"retained":false,"historicalAffected":[]}],"coverage":[]}