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Fencer Vulns
high 8.6

CVE-2021-41266 in the critical feed json

Authentication bypass issue in the Operator Console

published 2021-11-15 4 y ago modified 2026-06-17 4 mo ago also GHSA-4999-659w-mq36 , GO-2022-0261 , EUVD-2021-2293

cvss
8.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
48.1%
EPSS 48.1% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known, plus a Nuclei check

Summary

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.

Patch / fix

  • go github.com/minio/console 0.12.3
  • min minio_console 0.12.3

Exploit prediction

48.13% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template MinIO Operator Console Authentication Bypass nuclei detection template
  • github.com https://github.com/minio/console/pull/1217 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
GitHub 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Affected packages

ecosystem package affected fixed in
go github.com/minio/console
<0.12.3
0.12.3

Affected products

  • minio console

Classification

Weakness
  • CWE-306 Missing Authentication for Critical Functionality

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.