How severe is CVE-2023-28432?

CVE-2023-28432 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-28432 being actively exploited?

Yes. CVE-2023-28432 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-04-21, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2023-28432?

CVE-2023-28432 affects Minio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28432?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2023-28432 have an EU (EUVD) identifier?

Yes. CVE-2023-28432 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-32124. It is also flagged as exploited in the EUVD (since 2023-04-21).

When was CVE-2023-28432 published?

CVE-2023-28432 was published on 2023-03-22 and last updated on 2026-06-17.

CVE-2023-28432

CVE-2023-28432 is a high-severity vulnerability in Minio with a CVSS 3.x base score of 7.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2023-04-21). The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 84% (100th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2023-04-21)
EU (EUVD) id: EUVD-2023-32124
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2023-04-21)
Weakness: CWE-200
Affected product: Minio
Published: 2023-03-22
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-28432?: 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.
How severe is CVE-2023-28432?: CVE-2023-28432 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-28432 being actively exploited?: Yes. CVE-2023-28432 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-04-21, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2023-28432?: CVE-2023-28432 affects Minio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28432?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2023-28432 have an EU (EUVD) identifier?: Yes. CVE-2023-28432 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-32124. It is also flagged as exploited in the EUVD (since 2023-04-21).
When was CVE-2023-28432 published?: CVE-2023-28432 was published on 2023-03-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*

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