CVE-2026-53724 Parse Server: Stored XSS via trailing-dot filename bypassing file upload extension blocklist

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.79 and 9.9.1-alpha.4, the default file upload extension blocklist can be bypassed by appending a trailing dot to a filename whose extension would otherwise be blocked e.g...

CVE-2026-50008 Parse Server: Server option routeAllowList is bypassable through batch sub-requests

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. From version 9.8.0 to before version 9.9.1-alpha.3, the routeAllowList server option restricts external client access to a configured list of REST API routes. The check is only enforced as...

CVE-2026-50008 Parse Server: Server option routeAllowList is bypassable through batch sub-requests

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. From version 9.8.0 to before version 9.9.1-alpha.3, the routeAllowList server option restricts external client access to a configured list of REST API routes. The check is only enforced as...

CVE-2026-50008

Parse Server (versions 9.8.0–before 9.9.1-alpha.3) is affected by a bypass in the routeAllowList option. The allow-list check is enforced as Express middleware against the outer HTTP request URL, but the /batch handler dispatches sub-requests to the internal router without re-running the allow-li...

CVE-2026-50008 Parse Server: Server option routeAllowList is bypassable through batch sub-requests

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. From version 9.8.0 to before version 9.9.1-alpha.3, the routeAllowList server option restricts external client access to a configured list of REST API routes. The check is only enforced as...

CVE-2026-47138 Parse Server: Pre-authentication denial of service via client version header regex backtracking

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.77 and 9.9.1-alpha.1, an unauthenticated attacker who knows a publicly-known Parse Application ID can submit a single HTTP request whose client SDK version field contains...

CVE-2026-47138 Parse Server: Pre-authentication denial of service via client version header regex backtracking

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.77 and 9.9.1-alpha.1, an unauthenticated attacker who knows a publicly-known Parse Application ID can submit a single HTTP request whose client SDK version field contains...

EUVD-2026-36535

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.77 and 9.9.1-alpha.1, an unauthenticated attacker who knows a publicly-known Parse Application ID can submit a single HTTP request whose client SDK version field contains...

CVE-2026-47138 Parse Server: Pre-authentication denial of service via client version header regex backtracking

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.77 and 9.9.1-alpha.1, an unauthenticated attacker who knows a publicly-known Parse Application ID can submit a single HTTP request whose client SDK version field contains...

CVE-2026-47138

CVE-2026-47138 : Parse Server suffers pre-authentication DoS via adversarial client version header input causing polynomial backtracking in the request-header parser. Affected before fixes in versions up to 8.6.76/9.9.0-alpha.1; patched in 8.6.77 and 9.9.1-alpha.1. An unauthenticated attacker wit...

CVE-2026-47248 Parse Server: GraphQL "Did you mean" validation suggestions disclose schema to unauthenticated callers

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.78 and 9.9.1-alpha.2, Parse Server's GraphQL endpoint discloses schema metadata to unauthenticated callers through Did you mean ...? suggestions embedded in GraphQL...

EUVD-2026-36534

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.78 and 9.9.1-alpha.2, Parse Server's GraphQL endpoint discloses schema metadata to unauthenticated callers through Did you mean ...? suggestions embedded in GraphQL...

CVE-2026-47248 Parse Server: GraphQL "Did you mean" validation suggestions disclose schema to unauthenticated callers

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.78 and 9.9.1-alpha.2, Parse Server's GraphQL endpoint discloses schema metadata to unauthenticated callers through Did you mean ...? suggestions embedded in GraphQL...

CVE-2026-47248

CVE-2026-47248 – Parse Server GraphQL schema disclosure via Did you mean …? validation messages What is affected: Parse Server (Node.js) GraphQL endpoint exposes schema metadata to unauthenticated callers through Did you mean …? suggestions embedded in GraphQL validation errors. Root cause: Valid...

CVE-2026-47248 Parse Server: GraphQL "Did you mean" validation suggestions disclose schema to unauthenticated callers

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.78 and 9.9.1-alpha.2, Parse Server's GraphQL endpoint discloses schema metadata to unauthenticated callers through Did you mean ...? suggestions embedded in GraphQL...

PT-2026-48961

Name of the Vulnerable Software and Affected Versions Parse Server versions 9.8.0 through 9.9.1-alpha.4 Description Applications that enable Multi-Factor Authentication MFA and restrict the get permission on the User class via Class-Level Permissions CLP may expose sensitive user data. The issue...

PT-2026-48960

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 8.6.79 Parse Server versions prior to 9.9.1 Description The default file upload extension blocklist can be bypassed by appending a trailing dot to a filename with an extension that would normally be blocked. This...

PT-2026-48962

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 8.6.80 Parse Server versions prior to 9.9.1-alpha.6 Description A relation query using the $relatedTo operator allows an unauthenticated client to read the membership of a Relation field. This occurs even if the...

CVE-2026-39321

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.8.0-alpha.6 and 8.6.74, he login endpoint response time differs measurably depending on whether the submitted username or email exists in the database. When a user is not found, the...

CVE-2026-39381

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.8.0-alpha.7 and 8.6.75, the GET /sessions/me endpoint returns Session fields that the server operator explicitly configured as protected via the protectedFields server option. Any...