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...

PT-2026-24187

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 8.6.12 Parse Server versions prior to 9.5.1-alpha.1 Description A logic flaw in the requestKeywordDenylist security control allows bypassing restrictions by placing nested objects or arrays before prohibited...

PT-2026-24424

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 9.5.2-alpha.2 Parse Server versions prior to 8.6.15 Description Parse Server, an open-source backend deployable on Node.js infrastructures, is susceptible to resource exhaustion. An unauthenticated attacker can...

CVE-2026-30946: Allocation of Resources Without Limits or Throttling

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior 9.5.2-alpha.2 and 8.6.15, an unauthenticated attacker can exhaust Parse Server resources CPU, memory, database connections through crafted queries that exploit the lack of complexity limi...

CVE-2026-30972: Improper Control of Interaction Frequency

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o 9.5.2-alpha.10 and 8.6.23, Parse Server's rate limiting middleware is applied at the Express middleware layer, but the batch request endpoint /batch processes sub-requests internally by...

CVE-2026-31828: Improper Neutralization of Special Elements used in an LDAP Query

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.13 and 8.6.26, the LDAP authentication adapter is vulnerable to LDAP injection. User-supplied input authData.id is interpolated directly into LDAP Distinguished Names DN an...

PT-2026-24459

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 9.5.2-alpha.10 Parse Server versions prior to 8.6.23 Description Parse Server’s rate limiting middleware, applied at the Express middleware layer, is bypassed when processing sub-requests internally through the...

PT-2026-24460

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 9.5.2-alpha.12 Parse Server versions prior to 8.6.25 Description Parse Server, an open-source backend deployable on Node.js infrastructures, contains an issue where the internal GraphQLConfig and Audience classes...

CVE-2026-30967: Improper Authentication

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.9. and 8.6.22, the OAuth2 authentication adapter, when configured without the useridField option, only verifies that a token is active via the provider's token introspectio...

PT-2026-24457

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 9.5.2-alpha.7 Parse Server versions prior to 8.6.20 Description Parse Server’s internal tables, which store Relation field mappings, can be directly accessed via the REST API or GraphQL API by any client using on...

CVE-2026-30938: Protection Mechanism Failure

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.12 and 9.5.1-alpha.1, the requestKeywordDenylist security control can be bypassed by placing any nested object or array before a prohibited keyword in the request payload. This is...

CVE-2026-30939: Improperly Controlled Modification of Object Prototype Attributes

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.13 and 9.5.1-alpha.2, an unauthenticated attacker can crash the Parse Server process by calling a Cloud Function endpoint with a prototype property name as the function name. The...

CVE-2026-30941: Improper Neutralization of Special Elements in Data Query Logic

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.14 and 9.5.2-alpha.1, NoSQL injection vulnerability allows an unauthenticated attacker to inject MongoDB query operators via the token field in the password reset and email...

CVE-2026-30948: Improper Neutralization of Input During Web Page Generation

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.4 and 8.6.17, a stored cross-site scripting XSS vulnerability allows any authenticated user to upload an SVG file containing JavaScript. The file is served inline with...

PT-2026-24188

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 8.6.13 Parse Server versions prior to 9.5.1-alpha.2 Description An unauthenticated attacker can cause a denial of service by crashing the Parse Server process. This occurs by calling a Cloud Function endpoint wit...

PT-2026-24426

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 9.5.2-alpha.4 Parse Server versions prior to 8.6.17 Description Parse Server, an open source backend deployable on Node.js infrastructures, contains a stored cross-site scripting XSS issue. Authenticated users ca...

PT-2026-24455

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 9.5.2-alpha.6 Parse Server versions prior to 8.6.19 Description Parse Server, an open source backend deployable on Node.js infrastructures, contains a flaw in its validation process for protected fields. The...

PT-2026-24456

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 9.5.2-alpha.8 Parse Server versions prior to 8.6.21 Description Parse Server, an open-source backend deployable on Node.js infrastructures, contains an issue in its query handling. An attacker, authenticated or...

CVE-2026-30947: Incorrect Authorization

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.3 and 8.6.16, class-level permissions CLP are not enforced for LiveQuery subscriptions. An unauthenticated or unauthorized client can subscribe to any LiveQuery-enabled cla...

CVE-2026-30962: Improper Access Control

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.6 and 8.6.19, the validation for protected fields only checks top-level query keys. By wrapping a query constraint on a protected field inside a logical operator, the check...