{
  "cveId": "CVE-2026-117603",
  "url": "https://patchblox.com/security/cve/CVE-2026-117603",
  "summary": "CVE-2026-117603 is fixed in electrum on 1 platform by DEBIAN-CVE-2026-117603 (version 4.8.1\u002Bdfsg-1), released October 28, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "electrum: Electrum before 4.7.2 contains a spending limit bypass vulnerability in the Nostr Wallet Connect plugin that allows m...",
  "description": "Electrum before 4.7.2 contains a spending limit bypass vulnerability in the Nostr Wallet Connect plugin that allows malicious NWC clients to exceed daily_limit_sat by exploiting non-atomic budget checks and millisatoshi truncation. Attackers can send concurrent pay_invoice requests that pass budget_allows_spend() before add_to_budget() runs, or repeatedly pay msat amounts that are floored to whole satoshis, to drain funds beyond the limit.",
  "published": "2026-10-27T14:16:40Z",
  "severity": "",
  "epss": 0.00194,
  "epssPercentile": 0.09152,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "electrum",
      "release": "Debian 14",
      "fixedVersion": "4.8.1\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-117603",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-117603",
      "released": "2026-10-28T21:27:11Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}