CVE-2021-41266Minio Console Missing Authentication
Authentication bypass issue in the Operator Console
Published Nov 15, 2021 · Updated May 4, 2026 · Also known as GHSA-4999-659w-mq36, GO-2022-0261
Key Facts
Patch immediately- CVE-2021-41266 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Minio Console, github.com/minio/console (go), console.
- It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Oct 14, 2023. No public exploit code is known.
- EPSS estimates a 48% probability of exploitation in the next 30 days.
- Fixed versions are available, including github.com/minio/console 0.12.3, Minio Console 0.12.3.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
48%
Higher than 98.8% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
57/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Oct 14, 2023
698 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
10
Reports of active use
Advisories And Exploit References
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2021-41266
- advisoryGHSA advisory
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CIRCL KEV | Oct 14, 2023 | n/a | Not reported |
| Industry KEV feed | Oct 14, 2023 | n/a | Not reported |
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Minio ConsoleMin | See advisory | 0.12.3 |
| github.com/minio/consolego | See advisory | 0.12.3 |
| console | < 0.12.3 | n/a |
Patched Releases
github.com/minio/console
0.12.3
Minio Console
0.12.3
Timeline
Publicly disclosed
Nov 15, 2021
Added to CIRCL KEV
Oct 14, 2023
Added to Industry KEV feed
Oct 14, 2023
Last updated
May 4, 2026
Weakness Type
- CWE-306 Missing Authentication for Critical Function
References
- advisorynvd.nist.gov · CVE-2021-41266
- advisoryGHSA advisory
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Minio console is a graphical user interface for the for MinIO operator.
Affected: Minio Console; github.com/minio/console (go); console versions < 0.12.3. The full list is in the CVE brief.
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Oct 14, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including github.com/minio/console 0.12.3, Minio Console 0.12.3.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2021-41266 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo