# NVNB (New Vulnerability Notification from BlossomsArchive)

> NVNB is a cybersecurity vulnerability aggregation platform in Japan that aggregates, indexes, and delivers real-time vulnerability advisories from official Japanese security authorities.

## About This Service
NVNB collects vulnerability information published by:
- **JVN (Japan Vulnerability Notes)**: Vulnerabilities in software products used in Japan.
- **JVN iPedia**: Vulnerability countermeasure database operated by IPA.
- **IPA (Information-technology Promotion Agency, Japan)**: Urgent security alerts and advisories.
- **JPCERT/CC (Japan Computer Emergency Response Team Coordination Center)**: Security alerts, incident reports, and weekly vulnerability reports.
- **NVNB Original**: Editorial commentary and deep-dives on critical vulnerabilities provided by BlossomsArchive.

## Machine-Readable Feeds & APIs for AI Agents
AI agents, automated scrapers, and research bots are encouraged to use the following endpoints:

### 1. RSS 2.0 Feed
- **URL**: `https://nvnb.blossomsarchive.com/feed/`
- **Format**: XML (RSS 2.0)
- **Content**: The latest 50 vulnerability advisories, updated continuously. Fully compatible with RSS readers, Misskey, Mastodon, and webhook automation bots.

### 2. REST API (JSON)
- **URL**: `https://nvnb.blossomsarchive.com/api.php`
- **Method**: GET
- **Parameters**:
  - `page` (integer, default: 1): Page number.
  - `limit` (integer, default: 10, max: 100): Number of items per page.
  - `source` (string, optional): Filter by source ID (`jvn`, `jvn_ipedia`, `ipa`, `jpcert`, `nvnb`).
  - `keyword` (string, optional): Full-text keyword search in Japanese or English (CVE-XXXX, product names, etc.).
  - `within24h` (integer, 1 or 0, optional): If set to 1, filters articles published within the last 24 hours (up to 100 items).
- **Response Format**:
  ```json
  {
    "page": 1,
    "limit": 10,
    "total_count": 250,
    "total_pages": 25,
    "data": [
      {
        "guid": "unique-article-id",
        "title": "Title of vulnerability",
        "link": "https://example.com/advisory",
        "source_id": "jvn_ipedia",
        "source_name": "JVN iPedia",
        "pub_date": "2026-11-06 13:20:00"
      }
    ],
    "sources": [
      {"source_id": "jvn", "source_name": "JVN"},
      {"source_id": "jvn_ipedia", "source_name": "JVN iPedia"},
      {"source_id": "ipa", "source_name": "IPA"},
      {"source_id": "jpcert", "source_name": "JPCERT/CC"},
      {"source_id": "nvnb", "source_name": "NVNB Original"}
    ]
  }
  ```

## Sitemap & Canonical Web Interface
- **Web UI**: https://nvnb.blossomsarchive.com/
- **Sitemap**: https://nvnb.blossomsarchive.com/sitemap.xml