Arbitrary file upload in Parse-community Parse-server

CVE-2026-55778

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.9.1-alpha.11 and 8.6.81, the default fileUpload.fileExtensions blocklist could be bypassed by uploading a file with a non-st…

Vulnerability class: Unrestricted File Upload

Affected products

Weakness classification (CWE)

References