CVE-2023-28432
HighExploitedPublic exploitIn 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.
Published Mar 22, 2023 · Updated Oct 8, 2026 · Also known as BIT-minio-2023-28432, GHSA-6xvq-wj2x-3h3q
Key Facts
Patch immediately- CVE-2023-28432 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Minio.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 24, 2023. Public exploit code is available.
- EPSS estimates a 84% probability of exploitation in the next 30 days.
- Fixed versions are available, including Minio 2023.03.20, Minio 2023-03-20t20-16-18z.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
84%
Higher than 99.6% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-28432 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Apr 21, 2023 | May 12, 2023 | Not reported |
| Industry KEV feed | Mar 24, 2023 | May 12, 2023 | Not reported |
| CIRCL KEV | Apr 21, 2023 | May 12, 2023 | Not reported |
| ENISA EUVD | Apr 21, 2023 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| MinioMinio | >= 2019.12.17, >= >= RELEASE.2019-12-17T23-16-33Z, < RELEASE.2023-03-20T20-16-18Z | 2023-03-20t20-16-18z |
Patched Releases
Minio
2023.03.20, 2023-03-20t20-16-18z
Timeline
Publicly disclosed
Mar 22, 2023
Added to Industry KEV feed
Mar 24, 2023
Added to CISA KEV
Apr 21, 2023
Added to CIRCL KEV
Apr 21, 2023
Added to ENISA EUVD
Apr 21, 2023
Last updated
Oct 8, 2026
Weakness Type
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28432.json
- advisoryhttps://twitter.com/Andrew___Morris/status/1639325397241278464
- advisoryhttps://viz.greynoise.io/tag/minio-information-disclosure-attempt
- advisoryVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Minio is a Multi-Cloud Object Storage framework.
Affected: Minio versions >= 2019.12.17, >= >= RELEASE.2019-12-17T23-16-33Z, < RELEASE.2023-03-20T20-16-18Z. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 24, 2023.
Yes. It was added on Apr 21, 2023 with a federal remediation due date of May 12, 2023.
Public exploit code is available.
Fixed versions are available, including Minio 2023.03.20, Minio 2023-03-20t20-16-18z.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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