{"api_version":"1","generated_at":"2026-04-15T07:47:38+00:00","cve":"CVE-2021-32738","urls":{"html":"https://cve.report/CVE-2021-32738","api":"https://cve.report/api/cve/CVE-2021-32738.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-32738","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-32738"},"summary":{"title":"CVE-2021-32738","description":"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.","state":"PUBLIC","assigner":"security-advisories@github.com","published_at":"2021-07-02 19:15:00","updated_at":"2022-07-02 21:07:00"},"problem_types":["CWE-347"],"metrics":[],"references":[{"url":"https://github.com/stellar/js-stellar-sdk/security/advisories/GHSA-6cgh-hjpw-q3gq","name":"https://github.com/stellar/js-stellar-sdk/security/advisories/GHSA-6cgh-hjpw-q3gq","refsource":"CONFIRM","tags":[],"title":"Utils.readChallengeTx does not verify the server account signature · Advisory · stellar/js-stellar-sdk · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/stellar/js-stellar-sdk/releases/tag/v8.2.3","name":"https://github.com/stellar/js-stellar-sdk/releases/tag/v8.2.3","refsource":"MISC","tags":[],"title":"Release v8.2.3 · stellar/js-stellar-sdk · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-32738","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32738","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"32738","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"stellar","cpe5":"js-stellar-sdk","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"node.js","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-32738","qid":"982017","title":"Nodejs (npm) Security Update for stellar-sdk (GHSA-6cgh-hjpw-q3gq)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2021-32738","STATE":"PUBLIC","TITLE":"Utils.readChallengeTx does not verify the server account signature"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"js-stellar-sdk","version":{"version_data":[{"version_value":"< 8.2.3"}]}}]},"vendor_name":"stellar"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"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."}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-287: Improper Authentication"}]}]},"references":{"reference_data":[{"name":"https://github.com/stellar/js-stellar-sdk/security/advisories/GHSA-6cgh-hjpw-q3gq","refsource":"CONFIRM","url":"https://github.com/stellar/js-stellar-sdk/security/advisories/GHSA-6cgh-hjpw-q3gq"},{"name":"https://github.com/stellar/js-stellar-sdk/releases/tag/v8.2.3","refsource":"MISC","url":"https://github.com/stellar/js-stellar-sdk/releases/tag/v8.2.3"}]},"source":{"advisory":"GHSA-6cgh-hjpw-q3gq","discovery":"UNKNOWN"}},"nvd":{"publishedDate":"2021-07-02 19:15:00","lastModifiedDate":"2022-07-02 21:07:00","problem_types":["CWE-347"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":4},"severity":"MEDIUM","exploitabilityScore":8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:stellar:js-stellar-sdk:*:*:*:*:*:node.js:*:*","versionEndExcluding":"8.2.3","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"32738","Ordinal":"208126","Title":"CVE-2021-32738","CVE":"CVE-2021-32738","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"32738","Ordinal":"1","NoteData":"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.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"32738","Ordinal":"2","NoteData":"2021-07-02","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"32738","Ordinal":"3","NoteData":"2021-07-02","Type":"Other","Title":"Modified"}]}}}