Prototype pollution in Parse Server - CVE-2026-32878
Published: March 20, 2026 / Updated: March 20, 2026
Vulnerability identifier: #VU124164
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-32878
CWE-ID: CWE-1321
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper input validation in the deep copy mechanism. A remote user can pass specially crafted input to the application and perform prototype pollution, which can result in data manipulation.
Affected software
Parse Server
How to mitigate CVE-2026-32878
Install updates from vendor's website.
Parse Server - addressed in versions 8.6.44, 9.6.0 alpha.20