Hyperledger Fabric is an enterprise-grade permissioned distributed ledger framework for developing solutions and applications. From versions 1.0.0 to 2.2.26, Channel.java implements readObject() and exposes deSerializeChannel() which call ObjectInputStream.readObject() on untrusted byte arrays without configuring an ObjectInputFilter. This is a classic Java deserialization RCE pattern. At time of publication, there are no publicly available patches.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/hyperledger/fabric/security/advisories/GHSA-prf8-cf2x-rhx7 Exploit, Mitigation, Vendor Advisory
- https://github.com/hyperledger/fabric/security/advisories/GHSA-prf8-cf2x-rhx7 Exploit, Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.3 · hyperledgerNVD modified 2026-10-26 21:10
Affected (CPE criteria) 1
cpe:2.3:a:hyperledger:fabric:*:*:*:*:*:*:*:*
References 3
- https://github.com/hyperledger/fabric/security/advisories/GHSA-prf8-cf2x-rhx7 Exploit, Mitigation, Vendor Advisory
- https://hyperledger.github.io/fabric-gateway Product
- https://github.com/hyperledger/fabric/security/advisories/GHSA-prf8-cf2x-rhx7 Exploit, Mitigation, Vendor Advisory