CVE-2026-33508 Parseplatform — Exploit & Vulnerability Details HIGH

Parameter	Value
CVSS	8.2 (HIGH)
Affected Versions	9.0.0 — 9.6.0
Fixed In	8.6.56
Type	CWE-674
Vendor	Parseplatform
Public PoC	No

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.

Attack Parameters

Attack Vector

Network

Can be exploited remotely

Attack Complexity

Low

Easy to exploit

Attack Requirements

Present

Additional conditions required

Privileges Required

None

No privileges needed

User Interaction

None

No user interaction needed

Impact Assessment

Confidentiality

None

No data leak

Integrity

None

No data modification

Availability

High

Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)

CWE-674

Vulnerable Products 46

Configuration	From (including)	Up to (excluding)
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server::::::node.js::*	—	`8.6.56`
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server::::::node.js::*	`9.0.0`	`9.6.0`
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha1::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha10::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha11::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha12::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha13::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha14::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha15::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha16::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha17::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha18::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha19::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha2::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha20::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha21::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha22::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha23::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha24::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha25::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha26::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha27::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha28::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha29::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha3::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha30::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha31::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha32::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha33::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha34::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha35::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha36::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha37::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha38::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha39::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha4::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha40::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha41::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha42::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha43::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha44::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha5::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha6::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha7::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha8::::node.js::*	—	—
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha9::::node.js::*	—	—