Answer in brief
CVE-2026-73645 records a Medium severity vulnerability in OpenZeppelin Confidential Contracts ERC7984ERC20Wrapper: once a wrapper is filled, subsequent wrap requests do not revert and result in loss of funds.. The current sources do not mark it as known exploited. The current feed maps OpenZeppelin/openzeppelin-confidential-contracts (generic), @openzeppelin/confidential-contracts (npm), @openzeppelin/confidential-contracts (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-73645 records a Medium severity vulnerability in OpenZeppelin Confidential Contracts ERC7984ERC20Wrapper: once a wrapper is filled, subsequent wrap requests do not revert and result in loss of funds.. The current sources do not mark it as known exploited. The current feed maps OpenZeppelin/openzeppelin-confidential-contracts (generic), @openzeppelin/confidential-contracts (npm), @openzeppelin/confidential-contracts (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps OpenZeppelin/openzeppelin-confidential-contracts (generic), @openzeppelin/confidential-contracts (npm), @openzeppelin/confidential-contracts (npm). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| OpenZeppelin/openzeppelin-confidential-contractsgeneric | < 0.3.1 | Not reported |
| @openzeppelin/confidential-contractsnpm | <=0.3.0 | 0.3.1 |
| @openzeppelin/confidential-contractsnpm | >=0 <0.3.1 | 0.3.1 |
Published upstream
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 13, 2026
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.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps OpenZeppelin/openzeppelin-confidential-contracts (generic), @openzeppelin/confidential-contracts (npm), @openzeppelin/confidential-contracts (npm). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| OpenZeppelin/openzeppelin-confidential-contractsgeneric | < 0.3.1 | Not reported |
| @openzeppelin/confidential-contractsnpm | <=0.3.0 | 0.3.1 |
| @openzeppelin/confidential-contractsnpm | >=0 <0.3.1 | 0.3.1 |
Published upstream
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 13, 2026
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.
Quoted source text, attributed separately from HOL analysis.