Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
At a glance
Severity
CRITICAL 9.8
EPSS
EPSS 3.20 % · percentile 88 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
GitHub_M
NVD status
Modified
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 5.5.2 and 6.2.1, an attacker can use a prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser. A patch is available in versions 5.5.2 and 6.2.1.