Improper Verification of Cryptographic Signature Affecting minio package, versions <0.20250403.145628-r0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published5 Mar 2026
- disclosed3 Apr 2025
Introduced: 3 Apr 2025
CVE-2025-31489 (opens in a new tab)How to fix?
Upgrade Wolfi minio to version 0.20250403.145628-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream minio package and not the minio package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
MinIO is a High Performance Object Storage released under GNU Affero General Public License v3.0. The signature component of the authorization may be invalid, which would mean that as a client you can use any arbitrary secret to upload objects given the user already has prior WRITE permissions on the bucket. Prior knowledge of access-key, and bucket name this user might have access to - and an access-key with a WRITE permissions is necessary. However with relevant information in place, uploading random objects to buckets is trivial and easy via curl. This issue is fixed in RELEASE.2025-04-03T14-56-28Z.