CVE-2026-41586— ObjectInputStream.readObject() without ObjectInputFilter in fabric-sdk-java allows Java deserialization RCE
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I. Basic Information for CVE-2026-41586
Vulnerability Information
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Vulnerability Title
ObjectInputStream.readObject() without ObjectInputFilter in fabric-sdk-java allows Java deserialization RCE
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
Hyperledger Fabric 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hyperledger Fabric是Hyperledger开源的一个企业级许可的分布式账本框架。用于开发解决方案和应用程序。 Hyperledger Fabric 1.0.0至2.2.26版本存在代码问题漏洞，该漏洞源于Channel.java的deSerializeChannel方法在反序列化未受信任的字节数组时未配置ObjectInputFilter，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| hyperledger | fabric | >= 1.0.0, <= 2.2.26 | - |
II. Public POCs for CVE-2026-41586
| # | POC Description | Source Link | Shenlong Link |
|---|
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- Getting started - Fabric Gateway client APIx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-41586
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