Parse Server has a query condition depth bypass via pre-validation transform pipeline

Description

An attacker can send an unauthenticated HTTP request with a deeply nested query containing logical operators to permanently hang the Parse Server process. The server becomes completely unresponsive and must be manually restarted. This is a bypass of the fix for CVE-2026-32944.

Recommendation

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

• Affected version(s): **< 8.6.55

  >= 9.0.0, < 9.6.0-alpha.44**

• Patched version(s): **8.6.55

  9.6.0-alpha.44**

References

• GHSA-9fjp-q3c4-6w3j
• CVE-2026-33498
• CWE-674
• CAPEC-310
• OWASP 2021-A6

Related Issues

• Parse Server has a protected fields bypass via dot-notation in query and sort - CVE-2026-31872
• Parse Server has an auth provider validation bypass on login via partial authData - CVE-2026-33409
• Parse Server has a protected fields bypass via logical query operators - CVE-2026-30962
• Parse Server has a password reset token single-use bypass via concurrent requests - CVE-2026-32943

Tags:

npm

parse-server