{"api_version":"1","generated_at":"2026-04-08T12:45:04+00:00","cve":"CVE-2022-35961","urls":{"html":"https://cve.report/CVE-2022-35961","api":"https://cve.report/api/cve/CVE-2022-35961.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-35961","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-35961"},"summary":{"title":"CVE-2022-35961","description":"OpenZeppelin Contracts is a library for secure smart contract development. The functions `ECDSA.recover` and `ECDSA.tryRecover` are vulnerable to a kind of signature malleability due to accepting EIP-2098 compact signatures in addition to the traditional 65 byte signature format. This is only an issue for the functions that take a single `bytes` argument, and not the functions that take `r, v, s` or `r, vs` as separate arguments. The potentially affected contracts are those that implement signature reuse or replay protection by marking the signature itself as used rather than the signed message or a nonce included in it. A user may take a signature that has already been submitted, submit it again in a different form, and bypass this protection. The issue has been patched in 4.7.3.","state":"PUBLIC","assigner":"security-advisories@github.com","published_at":"2022-08-15 11:21:00","updated_at":"2022-12-06 19:51:00"},"problem_types":["CWE-354"],"metrics":[],"references":[{"url":"https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3610","name":"https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3610","refsource":"MISC","tags":[],"title":"Fix ECDSA signature malleability by frangio · Pull Request #3610 · OpenZeppelin/openzeppelin-contracts · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.7.3","name":"https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.7.3","refsource":"MISC","tags":[],"title":"Release v4.7.3 · OpenZeppelin/openzeppelin-contracts · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4h98-2769-gh6h","name":"https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4h98-2769-gh6h","refsource":"CONFIRM","tags":[],"title":"ECDSA signature malleability · Advisory · OpenZeppelin/openzeppelin-contracts · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-35961","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-35961","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2022","cve_id":"35961","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"openzeppelin","cpe5":"contracts","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"node.js","cpe12":"*","cpe13":"*"},{"cve_year":"2022","cve_id":"35961","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"openzeppelin","cpe5":"contracts-upgradeable","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"node.js","cpe12":"*","cpe13":"*"},{"cve_year":"2022","cve_id":"35961","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"openzeppelin","cpe5":"contracts_upgradeable","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"node.js","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2022-35961","STATE":"PUBLIC","TITLE":"ECDSA signature malleability in OpenZeppelin Contracts"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"openzeppelin-contracts","version":{"version_data":[{"version_value":">= 4.1.0, < 4.7.3"}]}}]},"vendor_name":"OpenZeppelin"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"OpenZeppelin Contracts is a library for secure smart contract development. 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The issue has been patched in 4.7.3."}]},"impact":{"cvss":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.9,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-354: Improper Validation of Integrity Check Value"}]}]},"references":{"reference_data":[{"name":"https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4h98-2769-gh6h","refsource":"CONFIRM","url":"https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4h98-2769-gh6h"},{"name":"https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3610","refsource":"MISC","url":"https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3610"},{"name":"https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.7.3","refsource":"MISC","url":"https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.7.3"}]},"source":{"advisory":"GHSA-4h98-2769-gh6h","discovery":"UNKNOWN"}},"nvd":{"publishedDate":"2022-08-15 11:21:00","lastModifiedDate":"2022-12-06 19:51:00","problem_types":["CWE-354"],"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}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:*","versionStartIncluding":"4.1.0","versionEndExcluding":"4.7.3","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:*","versionStartIncluding":"4.1.0","versionEndExcluding":"4.7.3","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}