CVE-2020-11012: Authentication bypass MinIO Admin API

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-23 · updated 2026-06-17
Weakness: CWE-305

Description

MinIO versions before RELEASE.2020-04-23T00-58-49Z have an authentication bypass issue in the MinIO admin API. Given an admin access key, it is possible to perform admin API operations i.e. creating new service accounts for existing access keys - without knowing the admin secret key. This has been fixed and released in version RELEASE.2020-04-23T00-58-49Z.

Affected products

minio: before 2020-04-23t00-58-49z — fixed in 2020-04-23t00-58-49z

How to fix

Upgrade to a fixed version: minio 2020-04-23t00-58-49z. Check the vendor advisory for mitigations.

References

https://github.com/minio/minio/commit/4cd6ca02c7957aeb2de3eede08b0754332a77923
https://github.com/minio/minio/pull/9422
https://github.com/minio/minio/releases/tag/RELEASE.2020-04-23T00-58-49Z
https://github.com/minio/minio/security/advisories/GHSA-xv4r-vccv-mg4w
https://github.com/minio/minio/commit/4cd6ca02c7957aeb2de3eede08b0754332a77923
https://github.com/minio/minio/pull/9422
https://github.com/minio/minio/releases/tag/RELEASE.2020-04-23T00-58-49Z
https://github.com/minio/minio/security/advisories/GHSA-xv4r-vccv-mg4w

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