CVE-2023-28432

Minio Information Disclosure in Cluster Deployment

HIGH
7.5
CVSS Score
Published: March 22, 2023 at 08:16 PM UTC
Updated: June 17, 2026 at 05:47 AM UTC
1 product affected across 1 vendorMinIO

Using minio by minio?

Get instant alerts when new vulnerabilities affect minio - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploitation
CISA KEV
Exploit prediction
EPSS 84%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score84.0%

EPSS (Exploit Prediction Scoring System) estimates a 84.0% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

MinIO contains a vulnerability in a cluster deployment where MinIO returns all environment variables, which allows for information disclosure.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Unknown
Added to KEV
Apr 21, 2023
Remediation Due
May 12, 2023
1266 days overdue

Description

Minio is a Multi-Cloud Object Storage framework. In a cluster deployment starting with RELEASE.2019-12-17T23-16-33Z and prior to RELEASE.2023-03-20T20-16-18Z, MinIO returns all environment variables, including `MINIO_SECRET_KEY` and `MINIO_ROOT_PASSWORD`, resulting in information disclosure. All users of distributed deployment are impacted. All users are advised to upgrade to RELEASE.2023-03-20T20-16-18Z.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2019-12-17t23-16-33z ≤ v < 2023-03-20t20-16-18z>= RELEASE.2019-12-17T23-16-33Z, < RELEASE.2023-3-20T20-16-18Z
Affected range stops below 2023-03-20t20-16-18z, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCActiveAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-200NVD-CWE-noinfo

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card