Improper Validation of Syntactic Correctness of Input

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the LiveQuery subscription when an invalid regular expression patte...

Improperly Controlled Modification of Dynamically-Determined Object Attributes

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes via the POST /classes/Session endpoint. An...

Prototype Pollution

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Prototype Pollution in the deep copy mechanism. An attacker can inject unauthorized fields into class schemas and bypass...

GHSA-9CCR-FPP6-78QF Parse Server vulnerable to schema poisoning via prototype pollution in deep copy

Impact An attacker can bypass the default request keyword denylist protection and the class-level permission for adding fields by sending a crafted request that exploits prototype pollution in the deep copy mechanism. This allows injecting fields into class schemas that have field addition locked...

Parse Server's Cloud function dispatch crashes server via prototype chain traversal

Impact Remote clients can crash the Parse Server process by calling a cloud function endpoint with a crafted function name that traverses the JavaScript prototype chain of a registered cloud function handler, causing a stack overflow. Patches The fix restricts property lookups during cloud functi...

Improperly Controlled Sequential Memory Allocation

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Improperly Controlled Sequential Memory Allocation in the Cloud function endpoint. An attacker can cause the server process ...

GHSA-4263-JGMP-7PF4 Parse Server's Cloud function dispatch crashes server via prototype chain traversal

Impact Remote clients can crash the Parse Server process by calling a cloud function endpoint with a crafted function name that traverses the JavaScript prototype chain of a registered cloud function handler, causing a stack overflow. Patches The fix restricts property lookups during cloud functi...

Parse Server has a password reset token single-use bypass via concurrent requests

Impact The password reset mechanism does not enforce single-use guarantees for reset tokens. When a user requests a password reset, the generated token can be consumed by multiple concurrent requests within a short time window. An attacker who has intercepted a password reset token can race the...

Time-of-check Time-of-use (TOCTOU) Race Condition

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Time-of-check Time-of-use TOCTOU Race Condition in the password reset mechanism. An attacker can gain unauthorized access to...

GHSA-R3XQ-68WH-GWVH Parse Server has a password reset token single-use bypass via concurrent requests

Impact The password reset mechanism does not enforce single-use guarantees for reset tokens. When a user requests a password reset, the generated token can be consumed by multiple concurrent requests within a short time window. An attacker who has intercepted a password reset token can race the...

Uncontrolled Recursion

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Uncontrolled Recursion while processing of deeply nested query condition operators. An attacker can cause the server process...

Parse Server crash via deeply nested query condition operators

Impact An unauthenticated attacker can crash the Parse Server process by sending a single request with deeply nested query condition operators. This terminates the server and denies service to all connected clients. Patches A depth limit for query condition operator nesting has been added via the...

GHSA-9XP9-J92R-P88V Parse Server crash via deeply nested query condition operators

Impact An unauthenticated attacker can crash the Parse Server process by sending a single request with deeply nested query condition operators. This terminates the server and denies service to all connected clients. Patches A depth limit for query condition operator nesting has been added via the...

golang: net/url: Memory exhaustion in query parameter parsing in net/url

A flaw was found in the net/url package in the Go standard library. The package does not enforce a limit on the number of unique query parameters it parses. A Go application using the net/http.Request.ParseForm method will try to process all parameters provided in the request. A specially crafted...

PT-2026-25982

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.17 and 8.6.42, an authenticated user can overwrite server-generated session fields sessionToken, expiresAt, createdWith when creating a session object via POST /classes/...

PT-2026-25999

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.29 and 8.6.49, a user can sign up without providing credentials by sending an empty authData object, bypassing the username and password requirement. This allows the creati...

PT-2026-26160

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.28 and 8.6.48, the password reset mechanism does not enforce single-use guarantees for reset tokens. When a user requests a password reset, the generated token can be...

PT-2026-26165

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.21 and 8.6.45, an unauthenticated attacker can crash the Parse Server process by sending a single request with deeply nested query condition operators. This terminates the...

PT-2026-25986

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.24 and 8.6.47, remote clients can crash the Parse Server process by calling a cloud function endpoint with a crafted function name that traverses the JavaScript prototype...

PT-2026-25984

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.19 and 8.6.43, a remote attacker can crash the Parse Server by subscribing to a LiveQuery with an invalid regular expression pattern. The server process terminates when the...