CVE-2023-28432

CRITICALNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-04-21), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 3 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 84%CVSS: 7.5Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
9.0(high)
EG Risk
96(Attend)
EG Risk 96/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
84%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

March 22, 2023

Last Modified

October 24, 2025

Advisory Details (5)

Auto-updated Jun 4, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: github_release, github.
generic🔴 Active Exploitation

OpenAI, MinIO, And Why You Should Always Use docker-cli-scan To Keep Your Supply chAIn Clean

https://www.greynoise.io/blog/openai-minio-and-why-you-should-always-use-docker-cli-scan-to-keep-your-supply-chain-clean
generic

GreyNoise Visualizer | GreyNoise Visualizer

https://viz.greynoise.io/tag/minio-information-disclosure-attempt
generic🔴 Active Exploitation
https://twitter.com/Andrew___Morris/status/1639325397241278464
github Patch Available

Information Disclosure in Cluster Deployment · Advisory · minio/minio · GitHub

https://github.com/minio/minio/security/advisories/GHSA-6xvq-wj2x-3h3q
github_release Patch Available

Security and Bug Fixes Release

Patch available: minio/minio RELEASE.2023-03-20T20-16-18Z

https://github.com/minio/minio/releases/tag/RELEASE.2023-03-20T20-16-18Z

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 147 total refreshes for this CVE.

  1. 2026-09-08 18:54 UTCCISA KEV update
  2. 2026-09-06 17:15 UTCEG score recompute
  3. 2026-09-06 13:45 UTCEPSS rescore
  4. 2026-09-05 17:55 UTCEG score recompute
  5. 2026-09-05 15:25 UTCEPSS rescore
  6. 2026-09-04 17:38 UTCCISA KEV update
  7. 2026-09-04 14:35 UTCEG score recompute
  8. 2026-09-04 13:58 UTCEPSS rescore
  9. 2026-09-02 17:33 UTCCISA KEV update
  10. 2026-09-02 15:45 UTCEG score recompute
  11. 2026-09-02 14:09 UTCEPSS rescore
  12. 2026-08-31 14:19 UTCCISA KEV update
  13. 2026-08-30 21:29 UTCEG score recompute
  14. 2026-08-30 19:15 UTCEPSS rescore
  15. 2026-08-28 22:46 UTCEG score recompute
  16. 2026-08-28 21:38 UTCEPSS rescore
  17. 2026-08-27 17:22 UTCCISA KEV update
  18. 2026-08-27 15:34 UTCEG score recompute
  19. 2026-08-27 14:23 UTCEPSS rescore
  20. 2026-08-26 17:41 UTCCISA KEV update
  21. 2026-08-26 16:10 UTCEG score recompute
  22. 2026-08-26 14:43 UTCEPSS rescore
  23. 2026-08-25 16:50 UTCEG score recompute
  24. 2026-08-25 13:46 UTCEPSS rescore
  25. 2026-08-24 18:52 UTCCISA KEV update
Show 75 more
  1. 2026-08-24 17:32 UTCEG score recompute
  2. 2026-08-24 14:14 UTCEPSS rescore
  3. 2026-08-24 09:46 UTCEG score recompute
  4. 2026-08-23 02:35 UTCEG score recompute
  5. 2026-08-23 00:17 UTCEPSS rescore
  6. 2026-08-21 16:49 UTCCISA KEV update
  7. 2026-08-20 17:06 UTCCISA KEV update
  8. 2026-08-19 20:49 UTCEG score recompute
  9. 2026-08-19 17:33 UTCCISA KEV update
  10. 2026-08-19 17:02 UTCEPSS rescore
  11. 2026-08-18 16:58 UTCCISA KEV update
  12. 2026-08-17 13:56 UTCCISA KEV update
  13. 2026-08-16 03:19 UTCEG score recompute
  14. 2026-08-16 02:12 UTCEPSS rescore
  15. 2026-08-14 00:50 UTCEG score recompute
  16. 2026-08-13 21:58 UTCEPSS rescore
  17. 2026-08-12 13:53 UTCEG score recompute
  18. 2026-08-12 13:48 UTCEPSS rescore
  19. 2026-08-11 19:32 UTCCISA KEV update
  20. 2026-08-07 17:24 UTCEG score recompute
  21. 2026-08-07 17:09 UTCCISA KEV update
  22. 2026-08-07 16:24 UTCEPSS rescore
  23. 2026-08-05 17:25 UTCCISA KEV update
  24. 2026-08-04 17:02 UTCCISA KEV update
  25. 2026-08-04 11:43 UTCEG score recompute
  26. 2026-08-04 10:35 UTCEPSS rescore
  27. 2026-08-03 19:22 UTCCISA KEV update
  28. 2026-08-03 12:21 UTCEG score recompute
  29. 2026-08-03 10:34 UTCEPSS rescore
  30. 2026-07-30 18:52 UTCEG score recompute
  31. 2026-07-30 16:26 UTCEPSS rescore
  32. 2026-07-30 16:26 UTCEPSS rescore
  33. 2026-07-30 11:05 UTCEG score recompute
  34. 2026-07-30 03:19 UTCEG score recompute
  35. 2026-07-30 01:28 UTCEPSS rescore
  36. 2026-07-30 01:28 UTCEPSS rescore
  37. 2026-07-29 19:27 UTCCISA KEV update
  38. 2026-07-27 19:24 UTCCISA KEV update
  39. 2026-07-27 17:17 UTCCISA KEV update
  40. 2026-07-26 17:31 UTCEG score recompute
  41. 2026-07-26 14:52 UTCEPSS rescore
  42. 2026-07-26 14:52 UTCEPSS rescore
  43. 2026-07-26 13:38 UTCEG score recompute
  44. 2026-07-23 02:20 UTCEG score recompute
  45. 2026-07-22 23:07 UTCEG score recompute
  46. 2026-07-22 19:40 UTCCISA KEV update
  47. 2026-07-22 15:19 UTCEG score recompute
  48. 2026-07-22 14:06 UTCEPSS rescore
  49. 2026-07-22 14:06 UTCEPSS rescore
  50. 2026-07-21 17:47 UTCEG score recompute
  51. 2026-07-21 15:23 UTCEPSS rescore
  52. 2026-07-21 14:37 UTCCISA KEV update
  53. 2026-07-19 02:57 UTCEG score recompute
  54. 2026-07-19 02:27 UTCEPSS rescore
  55. 2026-07-19 02:27 UTCEPSS rescore
  56. 2026-07-17 08:13 UTCEG score recompute
  57. 2026-07-16 17:04 UTCCISA KEV update
  58. 2026-07-15 16:56 UTCEPSS rescore
  59. 2026-07-15 16:56 UTCEPSS rescore
  60. 2026-07-15 16:49 UTCCISA KEV update
  61. 2026-07-15 15:04 UTCCISA KEV update
  62. 2026-07-14 18:05 UTCCISA KEV update
  63. 2026-07-13 17:07 UTCCISA KEV update
  64. 2026-07-10 17:52 UTCCISA KEV update
  65. 2026-07-09 19:08 UTCEPSS rescore
  66. 2026-07-09 19:08 UTCEPSS rescore
  67. 2026-07-07 19:01 UTCCISA KEV update
  68. 2026-07-07 17:16 UTCCISA KEV update
  69. 2026-07-05 02:28 UTCEPSS rescore
  70. 2026-07-02 16:59 UTCEPSS rescore
  71. 2026-07-01 19:16 UTCCISA KEV update
  72. 2026-06-30 23:21 UTCEPSS rescore
  73. 2026-06-30 23:21 UTCEPSS rescore
  74. 2026-06-29 19:12 UTCCISA KEV update
  75. 2026-06-29 14:05 UTCEPSS rescore

Publicly available exploits

(10 references)

Working exploit code is in the public domain (10 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCBitWiz4rd/CVE-2023-28432
    First seen Apr 13, 2024

    PoC MinIO vulnerability exploit

    Open source ↗
  • GitHub PoCyTxZx/CVE-2023-28432
    First seen Oct 20, 2023
    Open source ↗
  • GitHub PoCChocapikk/CVE-2023-28432
    First seen Sep 5, 2023

    Automated vulnerability scanner for CVE-2023-28432 in Minio deployments, revealing sensitive environment variables.

    Open source ↗
  • GitHub PoCCuerz/CVE-2023-28432
    First seen Mar 29, 2023

    CVE-2023-28432 MinIO敏感信息泄露检测脚本

    Open source ↗
  • GitHub PoCsteponeerror/Cve-2023-28432-
    First seen Mar 27, 2023

    通过vulhub的复现过程实现了，基本的批量检测。比较垃圾但是勉强能用

    Open source ↗
  • GitHub PoCMzzdToT/CVE-2023-28432
    First seen Mar 24, 2023

    MinIO敏感信息泄露漏洞批量扫描poc&exp

    Open source ↗
  • GitHub PoCacheiii/CVE-2023-28432
    First seen Mar 24, 2023

    CVE-2023-28432 POC

    Open source ↗
  • GitHub PoCOkaytc/minio_unauth_check
    First seen Mar 24, 2023

    CVE-2023-28432,minio未授权访问检测工具

    Open source ↗
  • GitHub PoCMr-xn/CVE-2023-28432
    First seen Mar 23, 2023

    CVE-2023-28434 nuclei templates

    Open source ↗
  • GitHub PoCgobysec/CVE-2023-28432
    First seen Mar 23, 2023

    MiniO verify interface sensitive information disclosure vulnerability (CVE-2023-28432)

    Open source ↗

Frequently asked(6)

What is CVE-2023-28432?
CVE-2023-28432 is a critical vulnerability published on March 22, 2023. 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 MINIOSECRETKEY and MINIOROOTPASSWORD, resulting in information disclosure. All users of…
When was CVE-2023-28432 disclosed?
CVE-2023-28432 was first published in the National Vulnerability Database on March 22, 2023, with the most recent update on October 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-28432 actively exploited?
Yes. CISA added CVE-2023-28432 to the Known Exploited Vulnerabilities catalog on April 21, 2023, affecting MinIO MinIO. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-28432?
CVE-2023-28432 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-28432?
CVE-2023-28432 affects MinIO MinIO. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2023-28432?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-28432, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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