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CVE

CVE-2025-31489

MinIO performs incomplete signature validation for unsigned-trailer uploads
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CVE

CVE-2025-31489

MinIO performs incomplete signature validation for unsigned-trailer uploads

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.7
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/31xxx/CVE-2025-31489.json, https://github.com/minio/minio/pull/21103, https://github.com/minio/minio/security/advisories/GHSA-wg47-6jq2-q2hh, https://nvd.nist.gov/vuln/detail/CVE-2025-31489

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0.02925%
EPSS Percentile
0.86002%
Introduced Version
0
Fix Available
f2619d1f629db75c4282329352f4aaf79caba436

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