Summary
OpenZeppelin Contracts's Cross chain utilities for Arbitrum L2 see EOA calls as cross chain calls
References
https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3578
For more information
If you have any questions or comments about this advisory, or need assistance deploying a fix, email us at [email protected].
Impact
Contracts using the cross chain utilies for Arbitrum L2, CrossChainEnabledArbitrumL2 or LibArbitrumL2, will classify direct interactions of externally owned accounts (EOAs) as cross chain calls, even though they are not started on L1. This is assessed as low severity because any action taken by an EOA on the contract could also be taken by the EOA through the bridge if the issue was not present.
CVE-2022-35916 has a CVSS score of 5.3 (Medium). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (4.7.2); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Already deployed Kodem?
See it in your environmentNew to Kodem? Get a demo →Remediation advice
This issue has been patched in v4.7.2.
Frequently Asked Questions
- What is CVE-2022-35916? CVE-2022-35916 is a medium-severity security vulnerability in @openzeppelin/contracts (npm), affecting versions >= 4.6.0, < 4.7.2. It is fixed in 4.7.2.
- How severe is CVE-2022-35916? CVE-2022-35916 has a CVSS score of 5.3 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which packages are affected by CVE-2022-35916?
@openzeppelin/contracts(npm) (versions >= 4.6.0, < 4.7.2)@openzeppelin/contracts-upgradeable(npm) (versions >= 4.6.0, < 4.7.2)
- Is there a fix for CVE-2022-35916? Yes. CVE-2022-35916 is fixed in 4.7.2. Upgrade to this version or later.
- Is CVE-2022-35916 exploitable, and should I be worried? Whether CVE-2022-35916 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2022-35916 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2022-35916?
- Upgrade
@openzeppelin/contractsto 4.7.2 or later - Upgrade
@openzeppelin/contracts-upgradeableto 4.7.2 or later
- Upgrade