# CVE-2025-27414: GO-2025-3495 - MinIO SFTP authentication bypass due to improperly trusted SSH key in github.com/minio/minio

Source: https://junglewise.ai/threats/cve-2025-27414-minio-allows-an-sftp-authentication-bypass-due-to-improperly  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-03-03  
License: CC BY 4.0 with a link back

CVE-2025-27414 · Severity: medium · CVSS 4 · Published 2025-03-03

MinIO SFTP authentication bypass due to improperly trusted SSH key 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-2025-27414 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-27414 being exploited in the wild.

**How severe is CVE-2025-27414?** Medium severity, with a CVSS score of 4, published 3 March 2025.

**Which products and versions are affected?** github.com/minio/minio (Go) SEMVER:introduced=0, SEMVER:introduced=0.0.0-20240605075113-91e1487de457,fixed=0.0.0-20250227184332-4c71f1b4ec0f.

**Is there a fix for CVE-2025-27414?** Yes. github.com/minio/minio (Go): upgrade to 0.0.0-20250227184332-4c71f1b4ec0f or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-27414?** 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.

## How to fix

- github.com/minio/minio (Go): upgrade to 0.0.0-20250227184332-4c71f1b4ec0f or later

  ```sh
  go get github.com/minio/minio@v0.0.0-20250227184332-4c71f1b4ec0f
  ```


## Affected products

- github.com/minio/minio (Go) SEMVER:introduced=0, SEMVER:introduced=0.0.0-20240605075113-91e1487de457,fixed=0.0.0-20250227184332-4c71f1b4ec0f

## Identifiers

- CVE-2025-27414
- GHSA-wc79-7x8x-2p58
- GO-2025-3495

## 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)