CVE-2026-30946 HIGH

CVE-2026-30946: Parse Server affected by denial-of-service via unbounded query complexity in REST and GraphQL API

Vendor Parse-Community
Product parse-server
Weakness CWE-770 · Uncontrolled resource consumption
Published March 10, 2026
Last update March 11, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior 9.5.2-alpha.2 and 8.6.15, an unauthenticated attacker can exhaust Parse Server resources (CPU, memory, database connections) through crafted queries that exploit the lack of complexity limits in the REST and GraphQL APIs. All Parse Server deployments using the REST or GraphQL API are affected. This vulnerability is fixed in 9.5.2-alpha.2 and 8.6.15.

Key dates

02Disclosure timeline

March 10, 2026 CVE published
March 11, 2026 Record updated