Parse Server has a protected field change detection oracle via LiveQuery watch parameter

Impact An attacker can subscribe to LiveQuery with a watch parameter targeting a protected field. Although the protected field value is properly stripped from event payloads, the presence or absence of update events reveals whether the protected field changed, creating a binary oracle. For boolea...

Parse Server's LiveQuery bypasses CLP pointer permission enforcement

Impact Parse Server's LiveQuery WebSocket interface does not enforce Class-Level Permission CLP pointer permissions readUserFields and pointerFields. Any authenticated user can subscribe to LiveQuery events and receive real-time updates for all objects in classes protected by pointer permissions,...

BIT-PARSE-2026-33163 Parse Server leaks protected fields via LiveQuery afterEvent trigger

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0 and 8.6.50, when a Parse.Cloud.afterLiveQueryEvent trigger is registered for a class, the LiveQuery server leaks protected fields and authData to all subscribers of that class...

CVE-2026-33163

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.35 and 8.6.50, when a Parse.Cloud.afterLiveQueryEvent trigger is registered for a class, the LiveQuery server leaks protected fields and authData to all subscribers of that...

CVE-2026-32770

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...

CVE-2026-33163 Parse Server leaks protected fields via LiveQuery afterEvent trigger

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.35 and 8.6.50, when a Parse.Cloud.afterLiveQueryEvent trigger is registered for a class, the LiveQuery server leaks protected fields and authData to all subscribers of that...

CVE-2026-33163 Parse Server leaks protected fields via LiveQuery afterEvent trigger

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.35 and 8.6.50, when a Parse.Cloud.afterLiveQueryEvent trigger is registered for a class, the LiveQuery server leaks protected fields and authData to all subscribers of that...

CVE-2026-32770 Parse Server: LiveQuery subscription with invalid regular expression crashes server

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...

CVE-2026-32770 Parse Server: LiveQuery subscription with invalid regular expression crashes server

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...

CVE-2026-32770

CVE-2026-32770 affects the Parse Server project via the LiveQuery feature. The issue occurs when a remote attacker subscribes to LiveQuery with an invalid regular expression pattern, which can cause the server process to crash and lead to a denial of service for all connected clients. Affected ve...

Information Exposure

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 Information Exposure via the afterLiveQueryEvent trigger. An attacker can access sensitive protected fields and authenticati...

Parse Server leaks protected fields via LiveQuery afterEvent trigger

Impact When a Parse.Cloud.afterLiveQueryEvent trigger is registered for a class, the LiveQuery server leaks protected fields and authData to all subscribers of that class. Fields configured as protected via Class-Level Permissions protectedFields are included in LiveQuery event payloads for all...

GHSA-5HMJ-JCGP-6HFF Parse Server leaks protected fields via LiveQuery afterEvent trigger

Impact When a Parse.Cloud.afterLiveQueryEvent trigger is registered for a class, the LiveQuery server leaks protected fields and authData to all subscribers of that class. Fields configured as protected via Class-Level Permissions protectedFields are included in LiveQuery event payloads for all...

PT-2026-26166

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 9.6.0-alpha.35 Parse Server versions prior to 8.6.50 Description Parse Server is an open source backend deployable on Node.js infrastructures. When a Parse.Cloud.afterLiveQueryEvent trigger is registered for a...

GHSA-827P-G5X5-H86C Parse Server LiveQuery subscription with invalid regular expression crashes server

Impact 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 invalid pattern reaches the regex engine during subscription matching, causing denial of service for all connected clients. Patches...

BIT-PARSE-2026-32098 Parse Server has a protected fields bypass via LiveQuery subscription WHERE clause

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0 and 8.6.35, an attacker can exploit LiveQuery subscriptions to infer the values of protected fields without directly receiving them. By subscribing with a WHERE clause that...

Incorrect Authorization

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 Incorrect Authorization in LiveQuery. An attacker can gain unauthorized access to sensitive data by subscribing to real-time...

EUVD-2026-10864

Parse Server has a bypass of class-level permissions in LiveQuery...

EUVD-2026-10865

Parse Server has a bypass of class-level permissions in LiveQuery...

Regular Expression Denial of Service (ReDoS)

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 Regular Expression Denial of Service ReDoS in the handling of $regex in the LiveQuery component. An attacker can cause the...