What’s Vulnerable › Vulnerabilities

CVE-2021-41137: Bypassing policy restrictions on regular users

• Severity: medium (CVSS 6.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-13 · updated 2026-06-17
• Weakness: CWE-285

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.

Affected products

• minio: 2021-10-10t16-53-30z

References

• https://github.com/minio/minio/commit/415bbc74aacd53a120e54a663e941b1809982dbd
• https://github.com/minio/minio/pull/13388
• https://github.com/minio/minio/pull/13422
• https://github.com/minio/minio/security/advisories/GHSA-v64v-g97p-577c
• https://github.com/minio/minio/commit/415bbc74aacd53a120e54a663e941b1809982dbd
• https://github.com/minio/minio/pull/13388
• https://github.com/minio/minio/pull/13422
• https://github.com/minio/minio/security/advisories/GHSA-v64v-g97p-577c

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