{"cve":"CVE-2025-31489","nvd":{"published":"2025-04-03T20:15:25.897","modified":"2026-06-17T09:10:29.473","status":"Deferred","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.","cvss_v4":{"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},"cvss_v3":null,"cwes":["CWE-347"],"references":["https://github.com/minio/minio/pull/21103","https://github.com/minio/minio/security/advisories/GHSA-wg47-6jq2-q2hh"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:00:57.946988208+00:00"},"epss":{"cve":"CVE-2025-31489","score":0.02519,"percentile":0.84844,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wg47-6jq2-q2hh","url":"https://osv.dev/vulnerability/GHSA-wg47-6jq2-q2hh","summary":"MinIO performs incomplete signature validation for unsigned-trailer uploads","modified":"2026-10-08T08:11:00.681228061Z","packages":[{"ecosystem":"Go","name":"github.com/minio/minio","purl":"pkg:golang/github.com/minio/minio","ranges":["<0.0.0-20250403145552-8c70975283f9"],"fixed":["0.0.0-20250403145552-8c70975283f9"]}]},{"id":"GO-2025-3594","url":"https://osv.dev/vulnerability/GO-2025-3594","summary":"MinIO performs incomplete signature validation for unsigned-trailer uploads in github.com/minio/minio","modified":"2026-10-08T08:11:00.681228061Z","packages":[{"ecosystem":"Go","name":"github.com/minio/minio","purl":"pkg:golang/github.com/minio/minio","ranges":["<0.0.0-20250403145552-8c70975283f9"],"fixed":["0.0.0-20250403145552-8c70975283f9"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}