CVE-2026-33419— MinIO: LDAP login brute-force via user enumeration and missing rate limit
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I. Basic Information for CVE-2026-33419
Vulnerability Information
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Vulnerability Title
MinIO: LDAP login brute-force via user enumeration and missing rate limit
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
响应差异性信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
MinIO 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MinIO是美国MinIO公司的一款开源的对象存储服务器。该产品支持构建用于机器学习、分析和应用程序数据工作负载的基础架构。 MinIO RELEASE.2026-03-17T21-25-16Z之前版本存在安全漏洞，该漏洞源于STS AssumeRoleWithLDAPIdentity端点存在可区分的错误响应且缺少速率限制，可能导致LDAP凭据暴力破解。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-33419
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IV. Related Vulnerabilities
Same product: minio
- CVE-2026-41145
MinIO has an Unauthenticated Object Write via Query-String C - CVE-2026-40344
MinIO has an Unauthenticated Object Write via Missing Signat - CVE-2026-39414
MinIO affected a DoS via Unbounded Memory Allocation in S3 S - CVE-2026-34204
MinIO is Vulnerable to SSE Metadata Injection via Replicatio - CVE-2026-33322
MinIO: JWT Algorithm Confusion in OIDC Authentication
Same vendor: minio
- CVE-2026-41145
MinIO has an Unauthenticated Object Write via Query-String C - CVE-2026-40344
MinIO has an Unauthenticated Object Write via Missing Signat - CVE-2026-39414
MinIO affected a DoS via Unbounded Memory Allocation in S3 S - CVE-2026-34204
MinIO is Vulnerable to SSE Metadata Injection via Replicatio - CVE-2026-33322
MinIO: JWT Algorithm Confusion in OIDC Authentication
Same weakness: CWE-204
- CVE-2026-8242
Industrial Application Software IAS Canias ERP Login RMI doA - CVE-2026-20195
Cisco Identity Services Engine Observable Response Discrepan - CVE-2026-24468
OpenAEV Vulnerable to Username/Email Enumeration Through Dif - CVE-2026-34264
Information Disclosure vulnerability in SAP Human Capital Ma - CVE-2026-4113
SonicWALL SMA1000 安全漏洞
V. Comments for CVE-2026-33419
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