CVE-2026-32594
HIGHParse Server GraphQL WebSocket endpoint bypasses security middleware
Title source: cnaDescription
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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/parse-community/parse-server/security/advisories/GHSA-p2x3-8689-cwpg
X_Refsource_Misc x_refsource_misc
https://github.com/parse-community/parse-server/pull/10189
X_Refsource_Misc x_refsource_misc
https://github.com/parse-community/parse-server/pull/10190
Scores
CVSS v3
7.3
EPSS
0.0034
EPSS Percentile
25.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-306
Status
published
Products (5)
npm/parse-server
9.0.0 - 9.6.0-alpha.14npm
parse-community/parse-server
< 8.6.40
parse-community/parse-server
>= 9.0.0 < 9.6.0-alpha.14
parseplatform/parse-server
9.6.0 alpha1 (13 CPE variants)
parseplatform/parse-server
< 8.6.40
Published
Mar 16, 2026
Tracked Since
Mar 16, 2026