CVE-2026-30835

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.7 and 9.5.0-alpha.6, malformed $regex query parameter (e.g. [abc) causes the database to return a structured error object that is passed unsanitized through the API response. This leaks database internals such as error messages, error codes, code names, cluster timestamps, and topology details. The vulnerability is exploitable by any client that can send query requests, depending on the deployment's permission configuration. This issue has been patched in versions 8.6.7 and 9.5.0-alpha.6.

• CWE-209

• https://github.com/parse-community/parse-server/releases/tag/8.6.7Product, Release Notes
• https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.6Product, Release Notes
• https://github.com/parse-community/parse-server/security/advisories/GHSA-9cp7-3q5w-j92gPatch, Vendor Advisory

Published

Mar 6, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-3083GStreamer rtpqdm2depay Out-Of-Bounds Write Remote Code Execu…8.8
• CVE-2026-30830Defuddle cleans up HTML pages. Prior to version 0.9.0, the _…6.1
• CVE-2026-30831Rocket.Chat is an open-source, secure, fully customizable co…9.8
• CVE-2026-30832Soft Serve is a self-hostable Git server for the command lin…9.1
• CVE-2026-30833Rocket.Chat is an open-source, secure, fully customizable co…5.3
• CVE-2026-30834PinchTab is a standalone HTTP server that gives AI agents di…7.5
• CVE-2026-30836Step CA is an online certificate authority for secure, autom…10
• CVE-2026-30837Elysia is a Typescript framework for request validation, typ…7.5
• CVE-2026-30838league/commonmark is a PHP Markdown parser. Prior to version…6.1
• CVE-2026-30839Wallos is an open-source, self-hostable personal subscriptio…4.3
• CVE-2026-3084GStreamer H.266 Codec Parser Integer Underflow Remote Code E…7.8
• CVE-2026-30840Wallos is an open-source, self-hostable personal subscriptio…8.8