Description
OpenZeppelin Contracts is a library for secure smart contract development. The proposal creation entrypoint (`propose`) in `GovernorCompatibilityBravo` allows the creation of proposals with a `signatures` array shorter than the `calldatas` array. This causes the additional elements of the latter to be ignored, and if the proposal succeeds the corresponding actions would eventually execute without any calldata. The `ProposalCreated` event correctly represents what will eventually execute, but the proposal parameters as queried through `getActions` appear to respect the original intended calldata. This issue has been patched in 4.8.3. As a workaround, ensure that all proposals that pass through governance have equal length `signatures` and `calldatas` parameters.
Remediation
References
https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.3
https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-93hq-5wgc-jc82
Related Vulnerabilities
CVE-2018-15685 Vulnerability in maven package org.webjars.npm:electron
CVE-2023-31126 Vulnerability in maven package org.xwiki.commons:xwiki-commons-xml
CVE-2017-15703 Vulnerability in maven package org.apache.nifi:nifi-update-attribute-model
CVE-2022-39975 Vulnerability in maven package com.liferay.portal:release.portal.bom
CVE-2019-10241 Vulnerability in maven package org.eclipse.jetty:jetty-server