CVE-2026-33409 Parseplatform — Exploit & Vulnerability Details HIGH

Parameter	Value
CVSS	7.0 (HIGH)
Affected Versions	9.0.0 — 9.6.0
Fixed In	8.6.52
Type	CWE-287 (Improper Authentication)
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 8.6.52 and 9.6.0-alpha.41, an authentication bypass vulnerability allows an attacker to log in as any user who has linked a third-party authentication provider, without knowing the user's credentials. The attacker only needs to know the user's provider ID to gain full access to their account, including a valid session token.

This affects Parse Server deployments where the server option allowExpiredAuthDataToken is set to true. The default value is false. This issue has been patched in versions 8.6.52 and 9.6.0-alpha.41.

Attack Parameters

Attack Vector

Network

Can be exploited remotely

Attack Complexity

High

Difficult to exploit

Attack Requirements

Present

Additional conditions required

Privileges Required

High

Admin privileges needed

User Interaction

Active

User action required

Impact Assessment

Confidentiality

High

Complete data leak

Integrity

High

Complete data modification

Availability

None

No disruption

CVSS Vector v4.0

Weakness Type (CWE)

CWE-287 Improper Authentication

Vulnerable Products 42

Configuration	From (including)	Up to (excluding)
Parseplatform Parse-Server cpe:2.3:a:parseplatform:parse-server::::::node.js::*	—	`8.6.52`
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: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::*	—	—