{"api_version":"1","generated_at":"2026-04-08T12:44:42+00:00","cve":"CVE-2023-30542","urls":{"html":"https://cve.report/CVE-2023-30542","api":"https://cve.report/api/cve/CVE-2023-30542.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-30542","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-30542"},"summary":{"title":"CVE-2023-30542","description":"OpenZeppelin Contracts is a library for secure smart contract development. The proposal creation entrypoint (`propose`) in `GovernorCompatibilityBravo` allows the creation of proposals with a `signatures` array shorter than the `calldatas` array. This causes the additional elements of the latter to be ignored, and if the proposal succeeds the corresponding actions would eventually execute without any calldata. The `ProposalCreated` event correctly represents what will eventually execute, but the proposal parameters as queried through `getActions` appear to respect the original intended calldata. This issue has been patched in 4.8.3. As a workaround, ensure that all proposals that pass through governance have equal length `signatures` and `calldatas` parameters.","state":"PUBLIC","assigner":"security-advisories@github.com","published_at":"2023-04-16 08:15:00","updated_at":"2023-04-27 13:23:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.3","name":"https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.3","refsource":"MISC","tags":[],"title":"Release v4.8.3 · OpenZeppelin/openzeppelin-contracts · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-93hq-5wgc-jc82","name":"https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-93hq-5wgc-jc82","refsource":"MISC","tags":[],"title":"GovernorCompatibilityBravo may trim proposal calldata · Advisory · OpenZeppelin/openzeppelin-contracts · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-30542","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30542","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"30542","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":"2023","cve_id":"30542","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":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2023-30542","ASSIGNER":"security-advisories@github.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"OpenZeppelin Contracts is a library for secure smart contract development. 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As a workaround, ensure that all proposals that pass through governance have equal length `signatures` and `calldatas` parameters."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-20: Improper Input Validation","cweId":"CWE-20"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"OpenZeppelin","product":{"product_data":[{"product_name":"openzeppelin-contracts","version":{"version_data":[{"version_affected":"=","version_value":">= 4.3.0, < 4.8.3"}]}}]}}]}},"references":{"reference_data":[{"url":"https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-93hq-5wgc-jc82","refsource":"MISC","name":"https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-93hq-5wgc-jc82"},{"url":"https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.3","refsource":"MISC","name":"https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.3"}]},"source":{"advisory":"GHSA-93hq-5wgc-jc82","discovery":"UNKNOWN"},"impact":{"cvss":[{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L","version":"3.1"}]}},"nvd":{"publishedDate":"2023-04-16 08:15:00","lastModifiedDate":"2023-04-27 13:23:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:*","versionStartIncluding":"4.3.0","versionEndExcluding":"4.8.3","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:*","versionStartIncluding":"4.3.0","versionEndExcluding":"4.8.3","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}