{
  "cveId": "CVE-2026-117601",
  "url": "https://patchblox.com/security/cve/CVE-2026-117601",
  "summary": "CVE-2026-117601 is fixed in electrum on 1 platform by DEBIAN-CVE-2026-117601 (version 4.8.3\u002Bdfsg-1), released October 30, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "electrum: Electrum before 4.8.3 fails to verify signatures of wallet-owned inputs in unconfirmed mempool transactions, allowing...",
  "description": "Electrum before 4.8.3 fails to verify signatures of wallet-owned inputs in unconfirmed mempool transactions, allowing malicious servers to replace a just-broadcast transaction with a conflicting one. Attackers can swallow the user\u0027s transaction and display an invalid zero-fee copy paying an attacker address, tricking users into RBF fee-bumping and signing it.",
  "published": "2026-10-27T14:16:39Z",
  "severity": "",
  "epss": 0.00176,
  "epssPercentile": 0.07179,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "electrum",
      "release": "Debian 14",
      "fixedVersion": "4.8.3\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-117601",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-117601",
      "released": "2026-10-30T22:07:19Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}