cvedb.io
CVE-2026-33409
CRITICAL · CVSS 9.1
EPSS exploitation probability: 0%
Published 2026-03-24T19:16:53.287 · Last modified 2026-06-17T10:37:26.670

Summary

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.52 and 9.6.0-alpha.41, an authentication bypass vulnerability allows an attacker to log in as any user who has linked a third-party authentication provider, without knowing the user's credentials. The attacker only needs to know the user's provider ID to gain full access to their account, including a valid session token. This affects Parse Server deployments where the server option allowExpiredAuthDataToken is set to true. The default value is false. This issue has been patched in versions 8.6.52 and 9.6.0-alpha.41.

Affected products

parseplatform — parse-server

Does this affect you?

Add your gear to cvedb and we'll alert you only when parseplatform ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.