CVE-2025-31489: MinIO performs incomplete signature validation for unsigned-trailer uploads
Affected: minio · Exploitation: check available, not yet exploited
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 85% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- minio · minio< RELEASE.2025-04-03T14-56-28Z
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
- CISA KEV
- Not listed
- Public check
- MinIO - Incomplete Signature Validation for Unsigned-Trailer Uploads · nuclei template in projectdiscovery/nuclei-templates
- Vendor
- minio
- Published
- April 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-31489 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.