{"cve":"CVE-2026-33419","nvd":{"published":"2026-03-24T20:16:29.900","modified":"2026-06-17T10:37:27.917","status":"Analyzed","description":"MinIO is a high-performance object storage system. Prior to RELEASE.2026-03-17T21-25-16Z, MinIO AIStor's STS (Security Token Service) AssumeRoleWithLDAPIdentity endpoint is vulnerable to LDAP credential brute-forcing due to two combined weaknesses: (1) distinguishable error responses that enable username enumeration, and (2) absence of rate limiting on authentication attempts. An unauthenticated network attacker can enumerate valid LDAP usernames and then perform unlimited password guessing to obtain temporary AWS-style STS credentials, gaining access to the victim's S3 buckets and objects. This issue has been patched in RELEASE.2026-03-17T21-25-16Z.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":9.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-204","CWE-307"],"references":["https://github.com/minio/minio/security/advisories/GHSA-jv87-32hw-hh99"],"products":["minio:minio"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-33419","score":0.00456,"percentile":0.39616,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jv87-32hw-hh99","url":"https://osv.dev/vulnerability/GHSA-jv87-32hw-hh99","summary":"MinIO LDAP login brute-force via user enumeration and missing rate limit","modified":"2026-10-08T08:11:01.412153268Z","packages":[{"ecosystem":"Go","name":"github.com/minio/minio","purl":"pkg:golang/github.com/minio/minio","ranges":["<=0.0.0-20260212201848-7aac2a2c5b7c"],"fixed":[]}]},{"id":"GO-2026-4803","url":"https://osv.dev/vulnerability/GO-2026-4803","summary":"MinIO LDAP login brute-force via user enumeration and missing rate limit in github.com/minio/minio","modified":"2026-10-08T08:11:01.412153268Z","packages":[{"ecosystem":"Go","name":"github.com/minio/minio","purl":"pkg:golang/github.com/minio/minio","ranges":["all versions"],"fixed":[]}]}],"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."]}