CVE-2026-33322
CRITICAL WAF: Low
CVSS 9.8
Published: 2026-03-24
CWE-287
MinIO is a high-performance object storage system. From RELEASE.2022-11-08T05-27-07Z to before RELEASE.2026-03-17T21-25-16Z, a JWT algorithm confusion vulnerability in MinIO's OpenID Connect authentication allows an attacker who knows the OIDC ClientSecret to forge arbitrary identity tokens and obtain S3 credentials with any policy, including consoleAdmin. This issue has been patched in RELEASE.2026-03-17T21-25-16Z.
WAF Coverage Analysis
Improper Authentication
Low WAF Coverage
OWASP: A07:2021 Identification and Authentication Failures
Affected Software
| Vendor | Product | Version |
|---|---|---|
| minio | minio | 2022-11-08t05-27-07z - 2026-03-17t21-25-16z |
References
- github.com (Vendor Advisory)