Summary
Remote denial of service in Hyperledger Fabric Gateway
Workarounds
None, users must upgrade to v2.4.6.
References
https://github.com/hyperledger/fabric/releases/tag/v2.4.6
For more information
If you have any questions or comments about this advisory:
- Open an issue in Fabric
Credits
Thank you to Haosheng Wang of OPPO ZIWU Security Lab for this disclosure.
Impact
If a gateway client application sends a malformed request to a gateway peer it may crash the peer node.
This fix checks for the malformed gateway request and returns an error to the gateway client.
The application does not adequately validate input before processing it, allowing unexpected values to reach sensitive code paths. Typical impact: varies by context: data corruption, logic bypass, or denial of service.
CVE-2022-36023 has a CVSS score of 7.0 (High). 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 (2.4.6); 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.
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Fixed in v2.4.6.
Frequently Asked Questions
- What is CVE-2022-36023? CVE-2022-36023 is a high-severity improper input validation vulnerability in github.com/hyperledger/fabric (go), affecting versions >= 2.4.0, < 2.4.6. It is fixed in 2.4.6. The application does not adequately validate input before processing it, allowing unexpected values to reach sensitive code paths.
- How severe is CVE-2022-36023? CVE-2022-36023 has a CVSS score of 7.0 (High). 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 versions of github.com/hyperledger/fabric are affected by CVE-2022-36023? github.com/hyperledger/fabric (go) versions >= 2.4.0, < 2.4.6 is affected.
- Is there a fix for CVE-2022-36023? Yes. CVE-2022-36023 is fixed in 2.4.6. Upgrade to this version or later.
- Is CVE-2022-36023 exploitable, and should I be worried? Whether CVE-2022-36023 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-2022-36023 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-2022-36023? Upgrade
github.com/hyperledger/fabricto 2.4.6 or later.