CVE-2023-28432
Confirmed PUBLISHEDMinio Information Disclosure in Cluster Deployment
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- Mar 22, 2023
- Exploitation Reported
- Apr 21, 2023
- CVSS
- 7.5 High
- EPSS
- 84.0%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| minio |
minio
|
>= RELEASE.2019-12-17T23-16-33Z, < RELEASE.2023-03-20T20-16-18Z |
Affected |
CVE References
- https://github.com/minio/minio/security/advisories/GHSA-6xvq-wj2x-3h3q github.com · CVE Record https://github.com/minio/minio/security/advisories/GHSA-6xvq-wj2x-3h3q
- https://github.com/minio/minio/releases/tag/RELEASE.2023-03-20T20-16-18Z github.com · CVE Record https://github.com/minio/minio/releases/tag/RELEASE.2023-03-20T20-16-18Z
- twitter.com/Andrew___Morris/status/1639325397241278464 twitter.com · CVE Record https://twitter.com/Andrew___Morris/status/1639325397241278464
- viz.greynoise.io/tag/minio-information-disclosure-attempt viz.greynoise.io · CVE Record https://viz.greynoise.io/tag/minio-information-disclosure-attempt
- greynoise.io/blog/openai-minio-and-why-you-should-always-... greynoise.io · CVE Record https://www.greynoise.io/blog/openai-minio-and-why-you-should-always-...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2023-04-21 00:00 UTC |
| The Shadowserver | 2026-06-09 00:00 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-28432.yaml | Apr 25, 2025 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitation Status
Exploited in the wild
Recorded 2023-04-21 00:00:00 UTC · CISA
Proof of concept available
Recorded 2023-03-23 14:44:24 UTC · GitHub
Weaknesses (CWE)
-
Exposure of Sensitive Information to an Unauthorized Actor
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-28432.yaml | Apr 25, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2023-10-20 10:20:10 UTC · 3 stars
github · Created 2023-09-05 14:01:53 UTC · 3 stars
Automated vulnerability scanner for CVE-2023-28432 in Minio deployments, revealing sensitive environment variables.
github · Created 2023-03-29 01:26:30 UTC · 10 stars
CVE-2023-28432 MinIO敏感信息泄露检测脚本
github · Created 2023-03-23 16:27:47 UTC · 10 stars
MiniO verify interface sensitive information disclosure vulnerability (CVE-2023-28432)
github · Created 2023-03-23 14:44:24 UTC · 33 stars
CVE-2023-28434 nuclei templates
nuclei · Created Unknown
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC about 1 month ago00:00 UTC · about 1 month ago
KEV confirmed by The Shadowserver
Exploitation attested by an external source
-
00:00 UTC about 1 year ago00:00 UTC · about 1 year ago
Nuclei template available
Scanner coverage available
-
00:00 UTC over 3 years ago00:00 UTC · over 3 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
14:44 UTC over 3 years ago14:44 UTC · over 3 years ago
Public PoC available
Public proof-of-concept code published
-
20:16 UTC over 3 years ago20:16 UTC · over 3 years ago
CVE published
Vulnerability disclosed publicly
-
15:59 UTC over 3 years ago15:59 UTC · over 3 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2023-28432
{
"cve_id": "CVE-2023-28432",
"title": "Minio Information Disclosure in Cluster Deployment",
"affected_vendor": "minio",
"affected_product": "minio",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 7.5,
"epss_score": 0.83957,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}