import type { MiddlewareHandler } from "./types.js";
/**
 * Configuration for request security validation
 */
export interface SecurityConfig {
    /** Maximum request body size in bytes (default: 1MB) */
    maxBodySize: number;
    /** Maximum header size in bytes (default: 8KB) */
    maxHeaderSize: number;
    /** Request timeout in milliseconds (default: 30s) */
    timeout: number;
}
/**
 * Security validation middleware
 * Enforces request size limits and timeout to prevent abuse
 */
export declare function securityValidator(config?: Partial<SecurityConfig>): MiddlewareHandler;