# CVE-2026-33419: GO-2026-4803 - MinIO LDAP login brute-force via user enumeration and missing rate limit in github.com/minio/minio

Source: https://junglewise.ai/threats/cve-2026-33419-minio-ldap-login-brute-force-via-user-enumeration-and-missing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-23  
License: CC BY 4.0 with a link back

CVE-2026-33419 · Severity: medium · CVSS 4 · Published 2026-03-23

MinIO LDAP login brute-force via user enumeration and missing rate limit in github.com/minio/minio

Technologies: [github.com/minio/minio (Go)](https://junglewise.ai/threats/technologies/github-com-minio-minio). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-33419 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33419 being exploited in the wild.

**How severe is CVE-2026-33419?** Medium severity, with a CVSS score of 4, published 23 March 2026.

**Which products and versions are affected?** github.com/minio/minio (Go) SEMVER:introduced=0, SEMVER:introduced=0,last_affected=0.0.0-20260212201848-7aac2a2c5b7c.

**Is there a fix for CVE-2026-33419?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-33419?** Check whether you run github.com/minio/minio (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- github.com/minio/minio (Go) SEMVER:introduced=0, SEMVER:introduced=0,last_affected=0.0.0-20260212201848-7aac2a2c5b7c

## Identifiers

- CVE-2026-33419
- GHSA-jv87-32hw-hh99
- GO-2026-4803

## Related threats

- [MinIO path traversal in ReadMultiple storage-REST endpoint](https://junglewise.ai/threats/cve-2026-42600-minio-path-traversal-in-readmultiple-storage-rest-endpoint)
- [MinIO has an Unauthenticated Object Write via Query-String Credential Signature Bypass in Unsigned-Trailer Uploads](https://junglewise.ai/threats/cve-2026-41145-minio-has-an-unauthenticated-object-write-via-query-string)
- [MinIO has an Unauthenticated Object Write via Missing Signature Verification in Unsigned-Trailer Uploads](https://junglewise.ai/threats/cve-2026-40344-minio-has-an-unauthenticated-object-write-via-missing-signature)
- [MinIO denial of service via memory exhaustion in S3 Select CSV parsing](https://junglewise.ai/threats/cve-2026-39414-minio-denial-of-service-via-memory-exhaustion-in-s3-select-csv)
- [MinIO metadata injection in extractMetadataFromMime](https://junglewise.ai/threats/cve-2026-34204-minio-metadata-injection-in-extractmetadatafrommime)