{"answers":{"affected":"4 open source packages ship an affected version, including @openzeppelin/contracts and @openzeppelin/contracts-upgradeable. It affects 2 products.","exploited":"There is no known exploitation of CVE-2023-30541 in the wild and no public exploit code.","fix":"Upgrade @openzeppelin/contracts to 4.8.3 or later.","what":"CVE-2023-30541 is a medium-severity denial of service vulnerability in openzeppelin-contracts, published on 17 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-30541 and fix it if it is affected.\n\nWhat it is: CVE-2023-30541 is a medium-severity denial of service vulnerability in openzeppelin-contracts, published on 17 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-30541 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @openzeppelin/contracts (npm): affected from 3.2.0; fixed in 4.8.3\n- @openzeppelin/contracts (npm): affected from 3.2.0; fixed in 4.8.3\n- @openzeppelin/contracts-upgradeable (npm): affected from 3.2.0; fixed in 4.8.3\n- @openzeppelin/contracts-upgradeable (npm): affected from 3.2.0; fixed in 4.8.3\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-30541/ (Markdown: https://insights.sbomify.com/CVE-2023-30541/index.md)","id":"CVE-2023-30541","markdown":"https://insights.sbomify.com/CVE-2023-30541/index.md","name":"CVE-2023-30541","record":{"aliases":["GHSA-mx2q-35m2-x2rh"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Smart contract library","requires_auth":"none","summary":"Attackers can cause denial of service in OpenZeppelin proxy contracts by exploiting selector clashes that prevent function delegation.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"contracts","vendor":"openzeppelin"},{"product":"contracts_upgradeable","vendor":"openzeppelin"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-436","name":"Interpretation Conflict"}],"description":"OpenZeppelin Contracts is a library for secure smart contract development. A function in the implementation contract may be inaccessible if its selector clashes with one of the proxy's own selectors. Specifically, if the clashing function has a different signature with incompatible ABI encoding, the proxy could revert while attempting to decode the arguments from calldata. The probability of an accidental clash is negligible, but one could be caused deliberately and could cause a reduction in availability. The issue has been fixed in version 4.8.3. As a workaround if a function appears to be inaccessible for this reason, it may be possible to craft the calldata such that ABI decoding does not fail at the proxy and the function is properly proxied through.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"TransparentUpgradeableProxy clashing selector calls may not be delegated in @openzeppelin/contracts","id":"CVE-2023-30541","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":4,"n_references":3,"next":{"headline":"GovernorCompatibilityBravo may trim proposal calldata","id":"CVE-2023-30542"},"packages":[{"ecosystem":"npm","fixed":["4.8.3"],"introduced":["3.2.0"],"last_affected":[],"package":"@openzeppelin/contracts","purl":null,"source":"GHSA-mx2q-35m2-x2rh"},{"ecosystem":"npm","fixed":["4.8.3"],"introduced":["3.2.0"],"last_affected":[],"package":"@openzeppelin/contracts","purl":"pkg:npm/%40openzeppelin/contracts","source":"GHSA-mx2q-35m2-x2rh"},{"ecosystem":"npm","fixed":["4.8.3"],"introduced":["3.2.0"],"last_affected":[],"package":"@openzeppelin/contracts-upgradeable","purl":null,"source":"GHSA-mx2q-35m2-x2rh"},{"ecosystem":"npm","fixed":["4.8.3"],"introduced":["3.2.0"],"last_affected":[],"package":"@openzeppelin/contracts-upgradeable","purl":"pkg:npm/%40openzeppelin/contracts-upgradeable","source":"GHSA-mx2q-35m2-x2rh"}],"prev":{"headline":"Chat poll data can still be queried from API after purging history in Nextcloud talk","id":"CVE-2023-30540"},"products":["openzeppelin-contracts"],"published":"2023-04-17","related":[{"cvss_score":10,"headline":"TimelockController vulnerability in OpenZeppelin Contracts","id":"CVE-2021-39167","kev_date_added":null,"published":"2021-08-26"},{"cvss_score":10,"headline":"TimelockController vulnerability in OpenZeppelin Contracts","id":"CVE-2021-39168","kev_date_added":null,"published":"2021-08-26"},{"cvss_score":9.8,"headline":"UUPSUpgradeable vulnerability in OpenZeppelin Contracts","id":"CVE-2021-41264","kev_date_added":null,"published":"2021-11-12"},{"cvss_score":7.9,"headline":"ECDSA signature malleability in OpenZeppelin Contracts","id":"CVE-2022-35961","kev_date_added":null,"published":"2022-08-14"},{"cvss_score":7.5,"headline":"GovernorVotesQuorumFraction updates to quorum may affect past defeated proposals in @openzeppelin/contracts","id":"CVE-2022-31198","kev_date_added":null,"published":"2022-08-01"},{"cvss_score":7.5,"headline":"OpenZeppelin Contracts's ERC165Checker may revert instead of returning false","id":"CVE-2022-31170","kev_date_added":null,"published":"2022-07-21"},{"cvss_score":7.5,"headline":"OpenZeppelin Contracts's SignatureChecker may revert on invalid EIP-1271 signers","id":"CVE-2022-31172","kev_date_added":null,"published":"2022-07-21"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-02-05","vendors":["OpenZeppelin"]},"summary":"Attackers can cause denial of service in OpenZeppelin proxy contracts by exploiting selector clashes that prevent function delegation.","url":"https://insights.sbomify.com/CVE-2023-30541/"}