CVE-2026-30946 PUBLISHED

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

Assigner: GitHub_M
Reserved: 07.03.2026 Published: 10.03.2026 Updated: 11.03.2026

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.

Metrics

CVSS 4.0

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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	parse-community
Product	parse-server
Versions	Version < 8.6.15 is affected Version >= 9.0.0 < 9.5.2-alpha.2 is affected

References

Problem Types

CWE-770: Allocation of Resources Without Limits or Throttling CWE