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GHSA-29h2-jr22-frmh: OpenZeppelin Confidential Contracts `VestingWalletConfidential`: a malicious ERC-7984 token is able to extract private data from the vesting wallet

September 25, 2026

Two locations consume an encrypted handle returned by an untrusted external party and use it without verifying that the party is ACL-authorized on it.

References

  • github.com/OpenZeppelin/openzeppelin-confidential-contracts/commit/93e75ceed2b9648f53f9d133f431064353456805
  • github.com/OpenZeppelin/openzeppelin-confidential-contracts/commit/ee47edf189ab681cebdad18bfb53dee541987be2
  • github.com/OpenZeppelin/openzeppelin-confidential-contracts/commit/fe0863af2c9dce7614acce98720a913bf6a767a5
  • github.com/OpenZeppelin/openzeppelin-confidential-contracts/pull/423
  • github.com/OpenZeppelin/openzeppelin-confidential-contracts/pull/428
  • github.com/OpenZeppelin/openzeppelin-confidential-contracts/pull/431
  • github.com/OpenZeppelin/openzeppelin-confidential-contracts/releases/tag/v0.3.2
  • github.com/OpenZeppelin/openzeppelin-confidential-contracts/releases/tag/v0.4.2
  • github.com/OpenZeppelin/openzeppelin-confidential-contracts/releases/tag/v0.5.2
  • github.com/OpenZeppelin/openzeppelin-confidential-contracts/security/advisories/GHSA-29h2-jr22-frmh
  • github.com/advisories/GHSA-29h2-jr22-frmh

Code Behaviors & Features

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Affected versions

All versions before 0.3.2, all versions starting from 0.4.0-rc.0 before 0.4.2, all versions starting from 0.5.0-rc.0 before 0.5.2

Fixed versions

  • 0.3.2
  • 0.4.2
  • 0.5.2

Solution

Upgrade to versions 0.3.2, 0.4.2, 0.5.2 or above.

Impact 6.5 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-284: Improper Access Control

Source file

npm/@openzeppelin/confidential-contracts/GHSA-29h2-jr22-frmh.yml

Spotted a mistake? Edit the file on GitLab.

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