{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "zencashjs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2020-08-31T18:44:53Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "Versions of `zencashjs` prior to 1.2.0 may cause loss of funds when used with cryptocurrency wallets. The package relies on a string comparison of the first two characters of a Horizen address to determine the destination address type of a transaction (P2PKH or P2SH). Due to the base58 address prefixes chosen in Horizen there exists the possibility of a clash of address prefixes for testnet P2PKH and mainnet P2SH addresses, testnet P2PKH addresses start with \u201czt\u201d while a subset of mainnet P2SH addresses can also start with \u201czt\u201d. The package interprets transactions sent to a \u201czt\u201d P2SH address on mainnet as P2PKH transactions erroneously. Any funds sent to a mainnet P2SH multisignature address starting with \u201czt\u201d will be sent to the wrong address and be lost.\n\n\n## Recommendation\n\nUpgrade to version 1.2.0 or later.",
  "id": "GHSA-xfrc-7mj2-5xh9",
  "modified": "2020-08-31T18:44:53Z",
  "published": "2020-09-03T17:14:51Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ZencashOfficial/zencashjs/commit/db01bd94b9f8a956d7835e934500eaa643f8bd13#diff-42d8d2088a96641b563b25ad908b0c0fR146"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/1035"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Undefined Behavior in zencashjs"
}