SB2026032042 - Prototype pollution in Parse Server



SB2026032042 - Prototype pollution in Parse Server

Published: March 20, 2026

Security Bulletin ID SB2026032042
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Prototype pollution (CVE-ID: CVE-2026-32878)

CWE-ID: CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes (\'Prototype Pollution\')

CVSSv4: 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/E:U/U:Green


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.


Remediation

Install update from vendor's website.