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    CVE-2026-33221

    Nhost is an open source Firebase alternative with GraphQL. Prior to version 0.12.0, the storage service's file upload handler trusts the client-provided Content-Type header without performing server-side MIME type detection. This allows an attacker to upload files with an arbitrary MIME type, bypassing any MIME-type-based restrictions configured on storage buckets. This issue has been patched in version 0.12.0.

    Published:Mar 20, 2026
    Last Modified:Jun 3, 2026
    EPS:Mar 20, 2026
    EPSS Score:0.0001
    CVSS Score:5.3

    Affected Products

    Vendor
    Nhost
    Product
    Nhost
    Vendor
    Nhost
    Product
    Storage

    Exploits

    No exploit reference

    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