VulnTideExploited vulnerabilities, by vendor. Data as of 28 Oct 2026.
Known exploitedIn CISA's KEV catalog since 21 April 2023Ransomware use: unknown
MinIO MinIO

CVE-2023-28432: MinIO Information Disclosure Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 21 Apr 2023, 30 days after the CVE record was published.

How likely is exploitation in the next 30 days?
84%

EPSS score, percentile 99.7 of all scored records

How severe?
7.5 High

CVSS v3.1 base score, given by the CNA

What should I do?

CISA deadline 12 May 2023. Apply updates per vendor instructions.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

  • >= RELEASE.2019-12-17T23-16-33Z, < RELEASE.2023-03-20T20-16-18Z

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

Required action, set by CISA

Apply updates per vendor instructions.

CISA due date for this action: 12 May 2023.

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

Linked from CISA's catalog entry

Affected products and versions

As listed in the CVE record.

minio minio
StatusVersions
Affected>= RELEASE.2019-12-17T23-16-33Z, < RELEASE.2023-03-20T20-16-18Z

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

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

Summary: CISA's KEV catalog, as of 28 Oct 2026.

  • CISA added CVE-2023-28432 to its Known Exploited Vulnerabilities (KEV) catalog on 21 Apr 2023.
  • CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
  • The due date CISA sets for the required action is 12 May 2023.
  • The CVE record was published on 22 Mar 2023, 30 days before it was added to KEV.
  • The CVE record carries a CVSS v3.1 base score of 7.5 (High), given by its CNA.
  • FIRST's EPSS model puts the probability of exploitation in the next 30 days at 84% (percentile 99.7), as of 28 Oct 2026.
  • CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact partial.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

Minio Information Disclosure in Cluster Deployment

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.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

DateEvent
22 Mar 2023CVE record published
21 Apr 2023Added to CISA KEV
12 May 2023CISA due date for the required action
21 Oct 2025CVE record last updated

References

More exploited MinIO vulnerabilities

  • CVE-2023-28434: MinIO Security Feature Bypass Vulnerability (added 19 Sep 2023)