CVE-2026-32594

moderate-risk

Published 2026-03-16

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.40 and 9.6.0-alpha.14, the GraphQL WebSocket endpoint for subscriptions does not pass requests through the Express middleware chain that enforces authentication, introspection control, and query complexity limits. An attacker can connect to the WebSocket endpoint and execute GraphQL operations without providing a valid application or API key, access the GraphQL schema via introspection even when public introspection is disabled, and send arbitrarily complex queries that bypass configured complexity limits. This vulnerability is fixed in 8.6.40 and 9.6.0-alpha.14.

Do I need to act?

0.11% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.3/10 High

NETWORK / LOW complexity

Affected Products (14)

Parse-Server

Affected Vendors

Parseplatform

References (3)

Issue Tracking https://github.com/parse-community/parse-server/pull/10189

Issue Tracking https://github.com/parse-community/parse-server/pull/10190

Mitigation https://github.com/parse-community/parse-server/security/advisories/GHSA-p2x3-86...

/ 100

moderate-risk

Severity 26/34 · High

Exploitability 0/34 · Minimal

Exposure 18/34 · Moderate