{
  "id": 2204590,
  "title": "One rented /24 could eclipse a Kademlia node. Now it takes ten.",
  "url": "https://urgent.news/2026/08/20/one-rented-24-could-eclipse-a-kademlia-node-now-it-takes-ten",
  "topic": "science",
  "section": "Science",
  "published": "2026-08-20T18:56:59.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/yashksaini/one-rented-24-could-eclipse-a-kademlia-node-now-it-takes-ten-121p"
  },
  "original_language": "en",
  "account": "The commit fixes Kademlia's admission rule by requiring distinct IP subnets instead of just node IDs in a k-bucket. This prevents a malicious actor from easily capturing a bucket by renting a large /24 network. The change isolates how an attacker can eclipse a node and measures the success of the attack on real lookups.",
  "summary": "This is a submission for DEV's Summer Bug Smash: Smash Stories powered by Sentry . The setting py-libp2p speaks Kademlia — a distributed hash table where every node keeps a routing table of other nodes, bucketed by how far their IDs sit from its own. You find a peer or a record by asking the nodes closest to the target, who point you closer, and closer, until you arrive. It's elegant, and it…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}