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CVE-2023-28434: MinIO Security Feature Bypass Vulnerability
MinIO MinIO · in CISA KEV since 2023-09-19
2023-09-19added to KEV
2023-10-10federal remediation due date
7.92%EPSS exploit probability (30 days) 94.5th percentile
8.8 HIGHCVSS 3.1
Unknownknown ransomware use
181days from NVD publication to KEV
What it is
MinIO contains a security feature bypass vulnerability that allows an attacker to use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket` to conduct privilege escalation. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-269 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2023-03-22 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2023-28434.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.