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CVE-2023-28432

97
FAUCET Score

CVE-2023-28432 is a critical information disclosure vulnerability in MinIO, a multi-cloud object storage framework, affecting cluster deployments prior to RELEASE.2023-03-20T20-16-18Z. The flaw allows unauthorized access to sensitive environment variables like MINIO_SECRET_KEY and MINIO_ROOT_PASSWORD. With a CVSS score of 7.5 (HIGH) and an EPSS score indicating high exploitability, this vulnerability is easily exploitable over the network without authentication, leading to complete compromise of confidentiality. It is actively exploited in the wild, with public exploit modules available in Metasploit and Nuclei, and has garnered significant community and media attention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2019-12-17t23-16-33z, < 2023-03-20t20-16-18zCPE matchmatch criteria
cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
83.96%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Apr 21, 2023
Metasploit: MinIO Bootstrap Verify Information Disclosure · Mar 20, 2023
Nuclei: CVE-2023-28432 · Mar 23, 2023
This CVE's current EPSS score of 0.8396 is in the 100th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
github.com / minio/minio/releases/tag/RELEASE.2023-03-20T20-16-18Z
Release Notes
github.com / minio/minio/security/advisories/GHSA-6xvq-wj2x-3h3q
ExploitVendor Advisory
twitter.com / Andrew___Morris/status/1639325397241278464
Third Party Advisory
viz.greynoise.io / tag/minio-information-disclosure-attempt
Third Party Advisory
greynoise.io / blog/openai-minio-and-why-you-should-always-use-docker-cli-scan-to-keep-your-supply-chain-clean
Third Party Advisory