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CVE-2026-30967GHSA-FR88-W35C-R596BIT-PARSE-2026-30967

Parse Server OAuth2 authentication adapter account takeover via identity spoofing

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 8.6.22, 9.5.2-alpha.9
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • 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 9.5.2-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 introspection endpoint, but does not verify that the token belongs to the user identified by authData.id. An attacker with any valid OAuth2 token from the same provider can authenticate as any other user. This affects any Parse Server deployment that uses the generic OAuth2 authentication adapter (configured with oauth2: true) without setting the useridField option. This vulnerability is fixed in 9.5.2-alpha.9. and 8.6.22.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • parse-community parse-server

    fixed in 8.6.22

  • parse-servernpm

    From 9.0.0-alpha.1 · fixed in 9.5.2-alpha.9

  • parse-servernpm

    fixed in 8.6.22

References 3

GitHub · parse-community/parse-server