An unauthenticated attacker can crash the Parse Server process by sending a single request with deeply nested query condition operators. This terminates the server and denies service to all connected clients.
A depth limit for query condition operator nesting has been added via the requestComplexity.queryDepth server option. The option is disabled by default to avoid a breaking change. To mitigate, upgrade and set the option to a value appropriate for your app.
None.
{
"severity": "HIGH",
"nvd_published_at": "2026-03-18T22:16:25Z",
"github_reviewed_at": "2026-03-17T17:35:52Z",
"cwe_ids": [
"CWE-674"
],
"github_reviewed": true
}