Weak Authentication Affecting parse-server package, versions <8.6.49>=9.0.0-alpha.1 <9.6.0-alpha.29
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Test your applications- Snyk IDSNYK-JS-PARSESERVER-15679889
- published18 Mar 2026
- disclosed17 Mar 2026
- creditUnknown
Introduced: 17 Mar 2026
NewCVE-2026-33042 (opens in a new tab)How to fix?
Upgrade parse-server to version 8.6.49, 9.6.0-alpha.29 or higher.
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 Weak Authentication in the user sign up. An attacker can create authenticated sessions without providing valid credentials by submitting an empty authData object during signup, even when anonymous users are disabled.
Workaround
This vulnerability can be mitigated by using a Cloud Code beforeSave trigger on the _User class to reject signups where authData is empty and no username/password is provided.