Hyperledger Fabric vulnerabilities

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Published CVEs affecting Hyperledger Fabric: 1 record(s), with affected versions and fixes.
cpe:2.3:a:hyperledger:fabric

CVE-2026-41586 Critical · 9.8 CWE-502 May 7, 2026

ObjectInputStream.readObject() without ObjectInputFilter in fabric-sdk-java allows Java deserialization RCE

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.