Parse Server exposes auth data via /users/me endpoint

Description

An authenticated user calling GET /users/me receives unsanitized auth data, including sensitive credentials such as MFA TOTP secrets and recovery codes. The endpoint internally uses master-level authentication for the session query, and the master context leaks through to the user data, bypassing auth adapter sanitization.

Recommendation

Update the parse-server package to the latest compatible version. Followings are version details:

• Affected version(s): **< 8.6.61

  >= 9.0.0, < 9.6.0-alpha.55**

• Patched version(s): **8.6.61

  9.6.0-alpha.55**

References

• GHSA-37mj-c2wf-cx96
• CVE-2026-33627
• CWE-200
• CAPEC-310
• OWASP 2021-A1
• OWASP 2021-A6

Related Issues

• Parse Server: Account takeover via JWT algorithm confusion in Google auth adapter - CVE-2026-27804
• Parse Server vulnerable to user enumeration via email verification endpoint - CVE-2026-31901
• Parse Server has a rate limit bypass via batch request endpoint - CVE-2026-30972
• Parse Server has an auth provider validation bypass on login via partial authData - CVE-2026-33409

Tags:

npm

parse-server