CVE-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.
Pythongreprules fetch cve-2026-82397-tornado-unbounded-form-parsing --engine opengrepDescription
`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.
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