{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:stellar:js-stellar-sdk:*:*:*:*:*:node.js:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "8.2.3"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6f0bb889c2d10b431ddd5f4a1bcdd519c80430b3"
            }
          ],
          "repo": "https://github.com/stellar/js-stellar-sdk",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6cgh-hjpw-q3gq"
  ],
  "database_specific": {},
  "details": "js-stellar-sdk is a Javascript library for communicating with a Stellar Horizon server. The `Utils.readChallengeTx` function used in SEP-10 Stellar Web Authentication states in its function documentation that it reads and validates the challenge transaction including verifying that the `serverAccountID` has signed the transaction. In js-stellar-sdk before version 8.2.3, the function does not verify that the server has signed the transaction. Applications that also used `Utils.verifyChallengeTxThreshold` or `Utils.verifyChallengeTxSigners` to verify the signatures including the server signature on the challenge transaction are unaffected as those functions verify the server signed the transaction. Applications calling `Utils.readChallengeTx` should update to version 8.2.3, the first version with a patch for this vulnerability, to ensure that the challenge transaction is completely valid and signed by the server creating the challenge transaction.",
  "id": "CVE-2021-32738",
  "modified": "2026-07-08T05:36:33.309787345Z",
  "published": "2021-07-02T19:15:08.063Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/stellar/js-stellar-sdk/releases/tag/v8.2.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/stellar/js-stellar-sdk/security/advisories/GHSA-6cgh-hjpw-q3gq"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}