CVE-2026-73645

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

No CVSS.

References

Link	Resource
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

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-13 18:18

Updated : 2026-08-14 19:18

NVD link : CVE-2026-73645

Mitre link : CVE-2026-73645

CVE.ORG link : CVE-2026-73645

JSON object : View

Products Affected

No product.

CWE

CWE-190

Integer Overflow or Wraparound

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