{"schema_version":1,"title":"OpenZeppelin Contracts Upgradeable vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 22 vulnerabilities in OpenZeppelin Contracts Upgradeable: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2025-54070, was published on 17 July 2025.","url":"https://junglewise.ai/threats/technologies/contracts-upgradeable","json_url":"https://junglewise.ai/threats/technologies/contracts-upgradeable.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/contracts-upgradeable","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":22,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":0},"latest":[{"cve":"CVE-2025-54070","cvss":3.1,"epss":0.0035,"slug":"cve-2025-54070-openzeppelin-contracts-out-of-bounds-memory-access-in-bytes","title":"OpenZeppelin Contracts out-of-bounds memory access in Bytes.lastIndexOf","severity":"low","exploited":false,"published_at":"2025-07-17T21:19:32+00:00","url":"https://junglewise.ai/threats/cve-2025-54070-openzeppelin-contracts-out-of-bounds-memory-access-in-bytes"},{"cve":"CVE-2024-27094","cvss":3.1,"epss":0.0076,"slug":"cve-2024-27094-openzeppelin-contracts-base64-encoding-reads-from-dirty-memory","title":"OpenZeppelin Contracts base64 encoding reads from dirty memory","severity":"low","exploited":false,"published_at":"2024-02-29T20:09:53+00:00","url":"https://junglewise.ai/threats/cve-2024-27094-openzeppelin-contracts-base64-encoding-reads-from-dirty-memory"},{"cve":"CVE-2023-49798","cvss":3.1,"epss":0.0054,"slug":"cve-2023-49798-openzeppelin-contracts-duplicated-execution-in-multicall","title":"OpenZeppelin Contracts duplicated execution in Multicall","severity":"low","exploited":false,"published_at":"2023-12-12T00:49:25+00:00","url":"https://junglewise.ai/threats/cve-2023-49798-openzeppelin-contracts-duplicated-execution-in-multicall"},{"cve":"CVE-2023-40014","cvss":3.1,"epss":0.0074,"slug":"cve-2023-40014-openzeppelin-contracts-improper-escaping-in-erc2771context","title":"OpenZeppelin Contracts improper escaping in ERC2771Context","severity":"low","exploited":false,"published_at":"2023-08-11T19:00:48+00:00","url":"https://junglewise.ai/threats/cve-2023-40014-openzeppelin-contracts-improper-escaping-in-erc2771context"},{"cve":"CVE-2023-34459","cvss":3.1,"epss":0.0037,"slug":"cve-2023-34459-openzeppelin-contracts-merkleproof-multiproof-verification-bypass","title":"OpenZeppelin Contracts MerkleProof multiproof verification bypass","severity":"low","exploited":false,"published_at":"2023-06-19T19:46:37+00:00","url":"https://junglewise.ai/threats/cve-2023-34459-openzeppelin-contracts-merkleproof-multiproof-verification-bypass"},{"cve":"CVE-2023-34234","cvss":3.1,"epss":0.006,"slug":"cve-2023-34234-openzeppelin-contracts-governor-frontrunning-proposal-creation","title":"OpenZeppelin Contracts Governor frontrunning proposal creation denial","severity":"low","exploited":false,"published_at":"2023-06-08T18:03:11+00:00","url":"https://junglewise.ai/threats/cve-2023-34234-openzeppelin-contracts-governor-frontrunning-proposal-creation"},{"cve":"CVE-2023-30542","cvss":3.1,"epss":0.0058,"slug":"cve-2023-30542-openzeppelin-contracts-governorcompatibilitybravo-calldata","title":"OpenZeppelin Contracts GovernorCompatibilityBravo calldata trimming","severity":"low","exploited":false,"published_at":"2023-04-20T14:11:03+00:00","url":"https://junglewise.ai/threats/cve-2023-30542-openzeppelin-contracts-governorcompatibilitybravo-calldata"},{"cve":"CVE-2023-30541","cvss":3.1,"epss":0.0081,"slug":"cve-2023-30541-openzeppelin-contracts-transparentupgradeableproxy-selector-clash","title":"OpenZeppelin Contracts TransparentUpgradeableProxy selector clash delegation bypass","severity":"low","exploited":false,"published_at":"2023-04-17T16:45:21+00:00","url":"https://junglewise.ai/threats/cve-2023-30541-openzeppelin-contracts-transparentupgradeableproxy-selector-clash"},{"cve":"CVE-2023-26488","cvss":3.1,"epss":0.0071,"slug":"cve-2023-26488-openzeppelin-contracts-incorrect-balance-calculation-in","title":"OpenZeppelin Contracts incorrect balance calculation in ERC721Consecutive","severity":"low","exploited":false,"published_at":"2023-03-03T20:02:16+00:00","url":"https://junglewise.ai/threats/cve-2023-26488-openzeppelin-contracts-incorrect-balance-calculation-in"},{"cve":"CVE-2022-35961","cvss":3.1,"epss":0.0042,"slug":"cve-2022-35961-openzeppelin-contracts-ecdsa-signature-malleability","title":"OpenZeppelin Contracts ECDSA signature malleability","severity":"low","exploited":false,"published_at":"2022-08-18T19:00:43+00:00","url":"https://junglewise.ai/threats/cve-2022-35961-openzeppelin-contracts-ecdsa-signature-malleability"},{"cve":"CVE-2022-31198","cvss":3.1,"epss":0.0075,"slug":"cve-2022-31198-openzeppelin-contracts-governorvotesquorumfraction-logic-flaw","title":"OpenZeppelin Contracts GovernorVotesQuorumFraction logic flaw","severity":"low","exploited":false,"published_at":"2022-08-18T18:48:41+00:00","url":"https://junglewise.ai/threats/cve-2022-31198-openzeppelin-contracts-governorvotesquorumfraction-logic-flaw"},{"cve":"CVE-2022-35916","cvss":3.1,"epss":0.0057,"slug":"cve-2022-35916-openzeppelin-contracts-arbitrum-l2-cross-chain-validation-bypass","title":"OpenZeppelin Contracts Arbitrum L2 cross-chain validation bypass","severity":"low","exploited":false,"published_at":"2022-08-14T00:25:11+00:00","url":"https://junglewise.ai/threats/cve-2022-35916-openzeppelin-contracts-arbitrum-l2-cross-chain-validation-bypass"},{"cve":"CVE-2022-35915","cvss":3.1,"epss":0.0076,"slug":"cve-2022-35915-openzeppelin-contracts-erc165checker-unbounded-gas-consumption","title":"OpenZeppelin Contracts ERC165Checker unbounded gas consumption","severity":"low","exploited":false,"published_at":"2022-08-14T00:23:34+00:00","url":"https://junglewise.ai/threats/cve-2022-35915-openzeppelin-contracts-erc165checker-unbounded-gas-consumption"},{"cve":"CVE-2022-31172","cvss":3.1,"epss":0.0049,"slug":"cve-2022-31172-openzeppelin-contracts-signaturechecker-unexpected-revert-on","title":"OpenZeppelin Contracts SignatureChecker unexpected revert on invalid EIP-1271 signers","severity":"low","exploited":false,"published_at":"2022-07-21T22:33:37+00:00","url":"https://junglewise.ai/threats/cve-2022-31172-openzeppelin-contracts-signaturechecker-unexpected-revert-on"},{"cve":"CVE-2022-31170","cvss":3.1,"epss":0.0077,"slug":"cve-2022-31170-openzeppelin-contracts-erc165checker-revert-on-invalid-interface","title":"OpenZeppelin Contracts ERC165Checker revert on invalid interface response","severity":"low","exploited":false,"published_at":"2022-07-21T22:33:01+00:00","url":"https://junglewise.ai/threats/cve-2022-31170-openzeppelin-contracts-erc165checker-revert-on-invalid-interface"},{"slug":"openzeppelin-contracts-upgradeable-inconsistent-storage-layout-in-849c2926","title":"OpenZeppelin Contracts Upgradeable inconsistent storage layout in ERC2771ContextUpgradeable","severity":"info","exploited":false,"published_at":"2022-03-14T23:22:27+00:00","url":"https://junglewise.ai/threats/openzeppelin-contracts-upgradeable-inconsistent-storage-layout-in-849c2926"},{"slug":"openzeppelin-contracts-governorcompatibilitybravo-incorrect-abi-33a7ac83","title":"OpenZeppelin Contracts GovernorCompatibilityBravo incorrect ABI encoding","severity":"info","exploited":false,"published_at":"2022-01-13T16:09:36+00:00","url":"https://junglewise.ai/threats/openzeppelin-contracts-governorcompatibilitybravo-incorrect-abi-33a7ac83"},{"cve":"CVE-2021-46320","cvss":3.1,"epss":0.0122,"slug":"cve-2021-46320-openzeppelin-contracts-initializer-reentrancy-vulnerability","title":"OpenZeppelin Contracts initializer reentrancy may lead to double initialization","severity":"low","exploited":false,"published_at":"2021-12-14T21:47:33+00:00","url":"https://junglewise.ai/threats/cve-2021-46320-openzeppelin-contracts-initializer-reentrancy-vulnerability"},{"slug":"openzeppelin-contracts-erc1155supply-token-balance-inconsistency-63fd3949","title":"OpenZeppelin Contracts ERC1155Supply token balance inconsistency","severity":"info","exploited":false,"published_at":"2021-11-15T23:28:18+00:00","url":"https://junglewise.ai/threats/openzeppelin-contracts-erc1155supply-token-balance-inconsistency-63fd3949"},{"slug":"openzeppelin-contracts-upgradeable-uupsupgradeable-initialization-cc343cd4","title":"OpenZeppelin Contracts Upgradeable UUPSUpgradeable initialization vulnerability","severity":"info","exploited":false,"published_at":"2021-09-15T20:22:13+00:00","url":"https://junglewise.ai/threats/openzeppelin-contracts-upgradeable-uupsupgradeable-initialization-cc343cd4"},{"cve":"CVE-2021-39168","cvss":3.1,"epss":0.0159,"slug":"cve-2021-39168-openzeppelin-contracts-timelockcontroller-privilege-escalation","title":"OpenZeppelin Contracts TimelockController privilege escalation","severity":"low","exploited":false,"published_at":"2021-08-30T16:12:49+00:00","url":"https://junglewise.ai/threats/cve-2021-39168-openzeppelin-contracts-timelockcontroller-privilege-escalation"},{"cve":"CVE-2021-39167","cvss":3.1,"epss":0.0159,"slug":"cve-2021-39167-openzeppelin-contracts-timelockcontroller-privilege-escalation","title":"OpenZeppelin Contracts TimelockController privilege escalation","severity":"low","exploited":false,"published_at":"2021-08-30T16:12:38+00:00","url":"https://junglewise.ai/threats/cve-2021-39167-openzeppelin-contracts-timelockcontroller-privilege-escalation"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"OpenZeppelin Contracts","slug":"contracts","vulnerabilities":21,"url":"https://junglewise.ai/threats/technologies/contracts"}],"technology":{"hub":true,"name":"OpenZeppelin Contracts Upgradeable","slug":"contracts-upgradeable","vendor":{"name":"OpenZeppelin","slug":"openzeppelin","url":"https://junglewise.ai/threats/vendors/openzeppelin"},"aliases":[],"category":"library","homepage":"https://openzeppelin.com/contracts/","repo_url":"https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable","description":"Solidity smart contract library providing upgradeable implementations of OpenZeppelin contracts with proxy pattern support.","url":"https://junglewise.ai/threats/technologies/contracts-upgradeable"},"most_severe":[{"cve":"CVE-2021-39168","cvss":3.1,"epss":0.0159,"slug":"cve-2021-39168-openzeppelin-contracts-timelockcontroller-privilege-escalation","title":"OpenZeppelin Contracts TimelockController privilege escalation","severity":"low","exploited":false,"published_at":"2021-08-30T16:12:49+00:00","url":"https://junglewise.ai/threats/cve-2021-39168-openzeppelin-contracts-timelockcontroller-privilege-escalation"},{"cve":"CVE-2021-39167","cvss":3.1,"epss":0.0159,"slug":"cve-2021-39167-openzeppelin-contracts-timelockcontroller-privilege-escalation","title":"OpenZeppelin Contracts TimelockController privilege escalation","severity":"low","exploited":false,"published_at":"2021-08-30T16:12:38+00:00","url":"https://junglewise.ai/threats/cve-2021-39167-openzeppelin-contracts-timelockcontroller-privilege-escalation"},{"cve":"CVE-2021-46320","cvss":3.1,"epss":0.0122,"slug":"cve-2021-46320-openzeppelin-contracts-initializer-reentrancy-vulnerability","title":"OpenZeppelin Contracts initializer reentrancy may lead to double initialization","severity":"low","exploited":false,"published_at":"2021-12-14T21:47:33+00:00","url":"https://junglewise.ai/threats/cve-2021-46320-openzeppelin-contracts-initializer-reentrancy-vulnerability"},{"cve":"CVE-2023-30541","cvss":3.1,"epss":0.0081,"slug":"cve-2023-30541-openzeppelin-contracts-transparentupgradeableproxy-selector-clash","title":"OpenZeppelin Contracts TransparentUpgradeableProxy selector clash delegation bypass","severity":"low","exploited":false,"published_at":"2023-04-17T16:45:21+00:00","url":"https://junglewise.ai/threats/cve-2023-30541-openzeppelin-contracts-transparentupgradeableproxy-selector-clash"},{"cve":"CVE-2022-31170","cvss":3.1,"epss":0.0077,"slug":"cve-2022-31170-openzeppelin-contracts-erc165checker-revert-on-invalid-interface","title":"OpenZeppelin Contracts ERC165Checker revert on invalid interface response","severity":"low","exploited":false,"published_at":"2022-07-21T22:33:01+00:00","url":"https://junglewise.ai/threats/cve-2022-31170-openzeppelin-contracts-erc165checker-revert-on-invalid-interface"},{"cve":"CVE-2024-27094","cvss":3.1,"epss":0.0076,"slug":"cve-2024-27094-openzeppelin-contracts-base64-encoding-reads-from-dirty-memory","title":"OpenZeppelin Contracts base64 encoding reads from dirty memory","severity":"low","exploited":false,"published_at":"2024-02-29T20:09:53+00:00","url":"https://junglewise.ai/threats/cve-2024-27094-openzeppelin-contracts-base64-encoding-reads-from-dirty-memory"},{"cve":"CVE-2022-35915","cvss":3.1,"epss":0.0076,"slug":"cve-2022-35915-openzeppelin-contracts-erc165checker-unbounded-gas-consumption","title":"OpenZeppelin Contracts ERC165Checker unbounded gas consumption","severity":"low","exploited":false,"published_at":"2022-08-14T00:23:34+00:00","url":"https://junglewise.ai/threats/cve-2022-35915-openzeppelin-contracts-erc165checker-unbounded-gas-consumption"},{"cve":"CVE-2022-31198","cvss":3.1,"epss":0.0075,"slug":"cve-2022-31198-openzeppelin-contracts-governorvotesquorumfraction-logic-flaw","title":"OpenZeppelin Contracts GovernorVotesQuorumFraction logic flaw","severity":"low","exploited":false,"published_at":"2022-08-18T18:48:41+00:00","url":"https://junglewise.ai/threats/cve-2022-31198-openzeppelin-contracts-governorvotesquorumfraction-logic-flaw"},{"cve":"CVE-2023-40014","cvss":3.1,"epss":0.0074,"slug":"cve-2023-40014-openzeppelin-contracts-improper-escaping-in-erc2771context","title":"OpenZeppelin Contracts improper escaping in ERC2771Context","severity":"low","exploited":false,"published_at":"2023-08-11T19:00:48+00:00","url":"https://junglewise.ai/threats/cve-2023-40014-openzeppelin-contracts-improper-escaping-in-erc2771context"},{"cve":"CVE-2023-26488","cvss":3.1,"epss":0.0071,"slug":"cve-2023-26488-openzeppelin-contracts-incorrect-balance-calculation-in","title":"OpenZeppelin Contracts incorrect balance calculation in ERC721Consecutive","severity":"low","exploited":false,"published_at":"2023-03-03T20:02:16+00:00","url":"https://junglewise.ai/threats/cve-2023-26488-openzeppelin-contracts-incorrect-balance-calculation-in"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}