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CVE-2026-33042GHSA-WJQW-R9X4-J59VBIT-PARSE-2026-33042

Parse Server affected by empty authData bypassing credential requirement on signup

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 9.6.0-alpha.29, 8.6.49
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

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.29 and 8.6.49, a user can sign up without providing credentials by sending an empty `authData` object, bypassing the username and password requirement. This allows the creation of authenticated sessions without proper credentials, even when anonymous users are disabled. The fix in 9.6.0-alpha.29 and 8.6.49 ensures that empty or non-actionable `authData` is treated the same as absent `authData` for the purpose of credential validation on new user creation. Username and password are now required when no valid auth provider data is present. As a workaround, use a Cloud Code `beforeSave` trigger on the `_User` class to reject signups where `authData` is empty and no username/password is provided.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • parse-community parse-server

    From 9.0.0 · fixed in 9.6.0-alpha.29; fixed in 8.6.49

  • parse-servernpm

    From 9.0.0 · fixed in 9.6.0-alpha.29

  • parse-servernpm

    fixed in 8.6.49

References 3

GitHub · parse-community/parse-server