CVE Feed

    Dashboard / CVE / CVE-2021-21362

    CVE-2021-21362

    MinIO is an open-source high performance object storage service and it is API compatible with Amazon S3 cloud storage service. In MinIO before version RELEASE.2021-03-04T00-53-13Z it is possible to bypass a readOnly policy by creating a temporary 'mc share upload' URL. Everyone is impacted who uses MinIO multi-users. This is fixed in version RELEASE.2021-03-04T00-53-13Z. As a workaround, one can disable uploads with `Content-Type: multipart/form-data` as mentioned in the S3 API RESTObjectPOST docs by using a proxy in front of MinIO.

    Published:Mar 8, 2021
    Last Modified:Nov 21, 2024
    EPS:Mar 8, 2021
    EPSS Score:0.00078
    CVSS Score:7.7

    Affected Products

    Vendor
    Minio
    Product
    Minio

    Exploits

    https://github.com/minio/minio/pull/11682https://github.com/minio/minio/pull/11682

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs
    CAPEC-104 Cross Zone Scripting
    CAPEC-114 Authentication Abuse
    CAPEC-115 Authentication Bypass
    CAPEC-127 Directory Indexing
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-151 Identity Spoofing
    CAPEC-17 Using Malicious Files
    CAPEC-194 Fake the Source of Data
    CAPEC-22 Exploiting Trust in Client
    CAPEC-39 Manipulating Opaque Client-based Data Tokens
    CAPEC-402 Bypassing ATA Password Security
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-5 Blue Boxing
    CAPEC-51 Poison Web Service Registry
    CAPEC-57 Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
    CAPEC-59 Session Credential Falsification through Prediction
    CAPEC-593 Session Hijacking
    CAPEC-60 Reusing Session IDs (aka Session Replay)
    CAPEC-633 Token Impersonation
    CAPEC-647 Collect Data from Registries
    CAPEC-650 Upload a Web Shell to a Web Server
    CAPEC-668 Key Negotiation of Bluetooth Attack (KNOB)
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-77 Manipulating User-Controlled Variables
    CAPEC-87 Forceful Browsing
    CAPEC-94 Adversary in the Middle (AiTM)

    Related CVEs

    CVE-2026-42600 (CVSS 6.9) — MinIO is a high-performance object storage system. From RELEASE.2022-07-24T01-54-52Z to before RELEASE.2026-04…
    CVE-2026-41145 (CVSS 8.8) — MinIO is a high-performance object storage system. Starting in RELEASE.2023-05-18T00-05-36Z and prior to RELEA…
    CVE-2026-40344 (CVSS 8.8) — MinIO is a high-performance object storage system. Starting in RELEASE.2023-05-18T00-05-36Z and prior to RELEA…
    CVE-2026-39414 (CVSS 7.1) — MinIO is a high-performance object storage system. From RELEASE.2018-08-18T03-49-57Z to before RELEASE.2025-12…
    CVE-2026-34204 (CVSS 7.1) — MinIO is a high-performance object storage system. Prior to version RELEASE.2026-03-26T21-24-40Z, a flaw in ex…
    CVE-2026-33419 (CVSS 9.1) — MinIO is a high-performance object storage system. Prior to RELEASE.2026-03-17T21-25-16Z, MinIO AIStor's STS (…
    CVE-2026-33322 (CVSS 9.2) — MinIO is a high-performance object storage system. From RELEASE.2022-11-08T05-27-07Z to before RELEASE.2026-03…
    CVE-2025-62506 (CVSS 8.1) — MinIO is a high-performance object storage system. In all versions prior to RELEASE.2025-10-15T17-29-55Z, a pr…
    CVE-2025-59952 (CVSS 8.7) — MinIO Java SDK is a Simple Storage Service (aka S3) client to perform bucket and object operations to any Amaz…
    CVE-2025-31489 (CVSS 8.7) — MinIO is a High Performance Object Storage released under GNU Affero General Public License v3.0. The signatur…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High