CVE-2026-33221

Published: Mar 21, 2026 Last Modified: Mar 21, 2026
ExploitDB:
Other exploit source:
Google Dorks:
LOW 2,1
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: active
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

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.

343

Predictable Value Range from Previous Values

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Other
Potential Impacts:
Varies By Context
Applicable Platforms
All platforms may be affected
View CWE Details
345

Insufficient Verification of Data Authenticity

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Other
Potential Impacts:
Varies By Context Unexpected State
Applicable Platforms
Technologies: ICS/OT
View CWE Details
https://github.com/nhost/nhost/commit/c4bd53f042d7f568e567e…
https://github.com/nhost/nhost/commit/c4bd53f042d7f568e567e18e2665af81660fce85
https://github.com/nhost/nhost/pull/4018
https://github.com/nhost/nhost/pull/4018
https://github.com/nhost/nhost/releases/tag/storage%400.12.0
https://github.com/nhost/nhost/releases/tag/storage%400.12.0
https://github.com/nhost/nhost/security/advisories/GHSA-g9f…
https://github.com/nhost/nhost/security/advisories/GHSA-g9f6-9775-hffm