CVE-2026-30946 Details
Description
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.
A denial-of-service vulnerability has been identified in Parse Server versions prior to 9.5.2-alpha.2 and 8.6.15. This issue allows an unauthenticated attacker to exhaust server resources such as CPU, memory, and database connections. The vulnerability arises from the absence of complexity limits in the REST and GraphQL APIs, enabling crafted queries to overload the server. All deployments of Parse Server using these APIs are affected.
The vulnerability is fixed in Parse Server versions 9.5.2-alpha.2 and 8.6.15. Users can update to these versions to address the issue. Additionally, for those using Parse Server 9, the `requestComplexity` server option can be configured to set complexity limits for queries, which helps mitigate the vulnerability. If the server options are not set, their default values will apply to fix the vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 11, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/parse-community/parse-server/releases/tag/8.6.15 | [email protected] | ProductRelease Notes |
| https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.2 | [email protected] | ProductRelease Notes |
| https://github.com/parse-community/parse-server/security/advisories/GHSA-cmj3-wx7h-ffvg | [email protected] | PatchVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-770 | Allocation of Resources Without Limits or Throttling | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| parseplatform parse-server | < 8.6.15 >= 9.0.0, < 9.5.2 9.5.2 alpha1 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 11, 2026 | Initial Analysis | [email protected] |
| Mar 10, 2026 | New CVE Received | [email protected] |