{"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-2023-26488 in the wild and no public exploit code.","fix":"Upgrade @openzeppelin/contracts to 4.8.2 or later.","what":"CVE-2023-26488 is a medium-severity vulnerability in openzeppelin-contracts, published on 3 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-26488 and fix it if it is affected.\n\nWhat it is: CVE-2023-26488 is a medium-severity vulnerability in openzeppelin-contracts, published on 3 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-26488 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @openzeppelin/contracts (npm): affected from 4.8.0; fixed in 4.8.2\n- @openzeppelin/contracts (npm): affected from 4.8.0; fixed in 4.8.2\n- @openzeppelin/contracts-upgradeable (npm): affected from 4.8.0; fixed in 4.8.2\n- @openzeppelin/contracts-upgradeable (npm): affected from 4.8.0; fixed in 4.8.2\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-2023-26488/ (Markdown: https://insights.sbomify.com/CVE-2023-26488/index.md)","id":"CVE-2023-26488","markdown":"https://insights.sbomify.com/CVE-2023-26488/index.md","name":"CVE-2023-26488","record":{"aliases":["GHSA-878m-3g6q-594q"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Smart contract library","requires_auth":"low_privilege","summary":"Incorrect balance calculation in ERC721Consecutive allows subsequent transfers to overflow reported balances, affecting smart contract developers using OpenZeppelin Contracts.","user_interaction":"not_required","vuln_class":"business_logic"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"contracts","vendor":"openzeppelin"},{"product":"contracts_upgradeable","vendor":"openzeppelin"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-682","name":"Incorrect Calculation"}],"description":"OpenZeppelin Contracts is a library for secure smart contract development. The ERC721Consecutive contract designed for minting NFTs in batches does not update balances when a batch has size 1 and consists of a single token. Subsequent transfers from the receiver of that token may overflow the balance as reported by `balanceOf`. The issue exclusively presents with batches of size 1. The issue has been patched in 4.8.2.","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":"OpenZeppelin Contracts contains Incorrect Calculation","id":"CVE-2023-26488","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"business_logic","year":"2023"},"n_packages":4,"n_references":3,"next":{"headline":"Guest-controlled out-of-bounds read/write on x86_64 in wasmtime","id":"CVE-2023-26489"},"packages":[{"ecosystem":"npm","fixed":["4.8.2"],"introduced":["4.8.0"],"last_affected":[],"package":"@openzeppelin/contracts","purl":null,"source":"GHSA-878m-3g6q-594q"},{"ecosystem":"npm","fixed":["4.8.2"],"introduced":["4.8.0"],"last_affected":[],"package":"@openzeppelin/contracts","purl":"pkg:npm/%40openzeppelin/contracts","source":"GHSA-878m-3g6q-594q"},{"ecosystem":"npm","fixed":["4.8.2"],"introduced":["4.8.0"],"last_affected":[],"package":"@openzeppelin/contracts-upgradeable","purl":null,"source":"GHSA-878m-3g6q-594q"},{"ecosystem":"npm","fixed":["4.8.2"],"introduced":["4.8.0"],"last_affected":[],"package":"@openzeppelin/contracts-upgradeable","purl":"pkg:npm/%40openzeppelin/contracts-upgradeable","source":"GHSA-878m-3g6q-594q"}],"prev":{"headline":"Vega has cross-site scripting vulnerability in `lassoAppend` function","id":"CVE-2023-26487"},"products":["openzeppelin-contracts"],"published":"2023-03-03","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-02-25","vendors":["OpenZeppelin"]},"summary":"Incorrect balance calculation in ERC721Consecutive allows subsequent transfers to overflow reported balances, affecting smart contract developers using OpenZeppelin Contracts.","url":"https://insights.sbomify.com/CVE-2023-26488/"}