CVE-2021-41137

Name: CVE-2021-41137
Creator: NVD / NIST
Published: 2021-10-13T14:15:07.827+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.24%

Last modified Jun 17, 2026

CVE-2021-41137 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Minio is a Kubernetes native application for cloud storage. All users on release `RELEASE.2021-10-10T16-53-30Z` are affected by a vulnerability that involves bypassing policy restrictions on regular users. EPSS estimates a 1.24% chance of exploitation in the next 30 days.

Description

Minio is a Kubernetes native application for cloud storage. All users on release `RELEASE.2021-10-10T16-53-30Z` are affected by a vulnerability that involves bypassing policy restrictions on regular users. Normally, checkKeyValid() should return owner true for rootCreds. In the affected version, policy restriction did not work properly for users who did not have service (svc) or security token service (STS) accounts. This issue is fixed in `RELEASE.2021-10-13T00-23-17Z`. A downgrade back to release `RELEASE.2021-10-08T23-58-24Z` is available as a workaround.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.24%

65.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-285

Affected Software

Vendor	Product	Versions
Minio	Minio	2021-10-10t16-53-30z

References

https://github.com/minio/minio/commit/415bbc74aacd53a120e54a663e941b1809982dbdPatch, Third Party Advisory
https://github.com/minio/minio/pull/13388Patch, Third Party Advisory
https://github.com/minio/minio/pull/13422Patch, Third Party Advisory
https://github.com/minio/minio/security/advisories/GHSA-v64v-g97p-577cThird Party Advisory
https://github.com/minio/minio/commit/415bbc74aacd53a120e54a663e941b1809982dbdPatch, Third Party Advisory
https://github.com/minio/minio/pull/13388Patch, Third Party Advisory
https://github.com/minio/minio/pull/13422Patch, Third Party Advisory
https://github.com/minio/minio/security/advisories/GHSA-v64v-g97p-577cThird Party Advisory

Timeline

Published: Oct 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41137?

How severe is CVE-2021-41137?

CVE-2021-41137 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.24% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41137?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41137?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST