High severity7.5NVD Advisory· Published Nov 18, 2021· Updated Jun 17, 2026
CVE-2021-43669
CVE-2021-43669
Description
A vulnerability has been detected in HyperLedger Fabric v1.4.0, v2.0.0, v2.0.1, v2.3.0. It can easily break down as many orderers as the attacker wants. This bug can be leveraged by constructing a message whose header is invalid to the interface Order. This bug has been admitted and fixed by the developers of Fabric.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/hyperledger/fabricGo | < 2.4.0 | 2.4.0 |
Affected products
6cpe:2.3:a:linuxfoundation:fabric:1.4.0:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:linuxfoundation:fabric:1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:linuxfoundation:fabric:2.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:linuxfoundation:fabric:2.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:linuxfoundation:fabric:2.3.0:*:*:*:*:*:*:*
- HyperLedger/Fabricdescription
Patches
Vulnerability mechanics
References
5- github.com/hyperledger/fabric/pull/2828nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-j96p-r523-8r3wghsaADVISORY
- jira.hyperledger.org/browse/FAB-18528nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-43669ghsaADVISORY
- github.com/hyperledger/fabric/releases/tag/v2.4.0-betaghsaWEB
News mentions
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