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EUVD-2026-233927

2026-10-23T21:44:45.006979+00:00

EUVD-2026-233927

fkie_cve-2022-31121

2026-10-23T21:44:45.007016+00:00

Hyperledger Fabric is a permissioned distributed ledger framework. In affected versions if a consensus client sends a malformed consensus request to an orderer it may crash the orderer node. A fix has been added in commit 0f1835949 which checks for missing consensus messages and returns an error to the consensus client should the message be missing. Users are advised to upgrade to versions 2.2.7 or v2.4.5. There are no known workarounds for this issue.

GHSA-72x4-cq6r-jp4p — Hyperledger Fabric vulnerable to Improper Input Validation in orderer/common/cluster consensus request

2026-10-23T21:44:45.007050+00:00

Affected: Go: github.com/hyperledger/fabric

### Impact If a consensus client sends a malformed consensus request to an orderer it may crash the orderer node. This fix checks for the malformed consensus request and returns an error to the consensus client.

### Specific Go Packages Affected github.com/hyperledger/fabric/orderer/common/cluster

### Patches Fixed in v2.2.7 and v2.4.5.

### Workarounds None, users must upgrade to v2.2.7 or v2.4.5.

### References https://github.com/hyperledger/fabric/releases/tag/v2.2.7 https://github.com/hyperledger/fabric/releases/tag/v2.4.5

### For more information If you have any questions or comments about this advisory: * Open an issue in [Hyperledger Fabric repository](https://github.com/hyperledger/fabric/issues)

### Credits Thank you to Haosheng Wang of OPPO ZIWU Security Lab for this disclosure.

gsd-2022-31121

2026-10-23T21:44:45.007084+00:00

gsd-2022-31121