CVE-2026-33508
HIGH
8,2
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.56 and 9.6.0-alpha.45, Parse Server's LiveQuery component does not enforce the requestComplexity.queryDepth configuration setting when processing WebSocket subscription requests. An attacker can send a subscription with deeply nested logical operators, causing excessive recursion and CPU consumption that degrades or disrupts service availability. This issue has been patched in versions 8.6.56 and 9.6.0-alpha.45.
674
Uncontrolled Recursion
DraftCommon Consequences
Security Scopes Affected:
Availability
Confidentiality
Potential Impacts:
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Read Application Data
Applicable Platforms
All platforms may be affected
https://github.com/parse-community/parse-server/commit/060d27053fb0fadf613c25aa…
https://github.com/parse-community/parse-server/commit/2126fe4e12f9b399dc6b4b6a…
https://github.com/parse-community/parse-server/pull/10259
https://github.com/parse-community/parse-server/pull/10260
https://github.com/parse-community/parse-server/security/advisories/GHSA-6qh5-m…