CVE-2026-82397: Tornado Unbounded Form Parsingcve-2026-82397-tornado-unbounded-form-parsing
`parse_qs_bytes` is invoked without specifying `max_num_fields`. Parsing URL-encoded bodies or query strings without a field count limit allows an attacker to send payloads with millions of parameters, blocking Tornado's event loop and causing a Denial of Service (CVE-2026-82397). Pass `max_num_fields` to bound parameter parsing.
