CVE-2021-41266

HIGH EXPLOITED NUCLEI

Minio Console < 0.12.3 - Authentication Bypass via External IDP Misconfiguration

Title source: llm

Exploitation Summary

CVE-2021-41266 has been observed exploited in the wild (reported by VulnCheck KEV). A Nuclei detection template is also available.

Description

Minio console is a graphical user interface for the for MinIO operator. Minio itself is a multi-cloud object storage project. Affected versions are subject to an authentication bypass issue in the Operator Console when an external IDP is enabled. All users on release v0.12.2 and before are affected and are advised to update to 0.12.3 or newer. Users unable to upgrade should add automountServiceAccountToken: false to the operator-console deployment in Kubernetes so no service account token will get mounted inside the pod, then disable the external identity provider authentication by unset the CONSOLE_IDP_URL, CONSOLE_IDP_CLIENT_ID, CONSOLE_IDP_SECRET and CONSOLE_IDP_CALLBACK environment variable and instead use the Kubernetes service account token.

Nuclei Templates (1)

MinIO Operator Console Authentication Bypass

CRITICALby alevsk

References (2)

Core 2

Core References

Issue Tracking, Third Party Advisory x_refsource_confirm

https://github.com/minio/console/security/advisories/GHSA-4999-659w-mq36

Exploit, Patch, Third Party Advisory x_refsource_misc

https://github.com/minio/console/pull/1217

Scores

CVSS v3 8.6

EPSS 0.4671

EPSS Percentile 98.7%

Attack Vector NETWORK

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

Details

VulnCheck KEV 2024-01-22

CWE

CWE-306

Status published

Products (2)

min/minio_console < 0.12.3

minio/console 0 - 0.12.3Go

Published Nov 15, 2021

Tracked Since Feb 18, 2026