{"cve":"CVE-2026-73645","nvd":{"published":"2026-08-13T18:18:20.277","modified":"2026-10-24T15:10:00.190","status":"Deferred","description":"OpenZeppelin Confidential Contracts is an experimental library for developing applications on the Zama fhEVM. Prior to 0.3.1, the ERC7984 contract tracked confidential total supply with an euint64 value, and an overflowing internal _mint operation could fail silently. The wrap and onTransferReceived functions in contracts/token/ERC7984/extensions/ERC7984ERC20Wrapper.sol did not handle that failure, so a user could transfer the underlying token without receiving the corresponding confidential wrapped token. With the default rate(), the wrapper fills after approximately 18.4 trillion tokens, and subsequent wrapping requests can cause loss of funds. This issue is fixed in version 0.3.1.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U","score":6.6},"cvss_v3":null,"cwes":["CWE-190"],"references":["https://github.com/OpenZeppelin/openzeppelin-confidential-contracts/commit/c620d4386021dde63ae3ea1507dee8543791134a","https://github.com/OpenZeppelin/openzeppelin-confidential-contracts/pull/271","https://github.com/OpenZeppelin/openzeppelin-confidential-contracts/releases/tag/v0.3.1","https://github.com/OpenZeppelin/openzeppelin-confidential-contracts/security/advisories/GHSA-hqf9-8xv5-x8xw"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:35.584907681+00:00"},"epss":{"cve":"CVE-2026-73645","score":0.00524,"percentile":0.44142,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-hqf9-8xv5-x8xw","url":"https://osv.dev/vulnerability/GHSA-hqf9-8xv5-x8xw","summary":"ERC7984ERC20Wrapper: once a wrapper is filled, subsequent wrap requests do not revert and result in loss of funds.","modified":"2026-08-13T18:51:16.040451Z","packages":[{"ecosystem":"npm","name":"@openzeppelin/confidential-contracts","purl":"pkg:npm/%40openzeppelin/confidential-contracts","ranges":["<0.3.1"],"fixed":["0.3.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}