CVE-2026-45581— fabric-chaincode-java: TLS Private Key Password Disclosed in INFO Startup Logs in Chaincode-as-a-Service Mode
Possible ATT&CK Techniques 1AI
T1530 · Data from Cloud StorageAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| hyperledger | fabric-chaincode-java | >= 2.3.1, < 2.5.10 | affected |
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I. Basic Information for CVE-2026-45581
Vulnerability Information
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Vulnerability Title
fabric-chaincode-java: TLS Private Key Password Disclosed in INFO Startup Logs in Chaincode-as-a-Service Mode
Source: NVD (National Vulnerability Database)
Vulnerability Description
fabric-chaincode-java is a Java based implementation of Hyperledger Fabric chaincode shim APIs. From version 2.3.1 to before version 2.5.10, when chaincode is deployed in chaincode-as-a-service mode with TLS enabled, the chaincode server INFO level logging includes the TLS private key password in plaintext. An attacker with access to the chaincode server logs could recover the TLS private key password. If the attacker can also obtain the TLS private key, they could impersonate the chaincode server. This issue has been patched in version 2.5.10.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过日志文件的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Hyperledger Fabric Chaincode Java 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hyperledger Fabric Chaincode Java是Hyperledger开源的一个基于Java的智能合约开发框架。 Hyperledger Fabric Chaincode Java 2.3.1版本至2.5.10之前版本存在日志信息泄露漏洞，该漏洞源于在启用TLS的链码即服务模式下，链码服务器INFO级别日志包含TLS私钥密码明文，可能导致攻击者恢复TLS私钥密码。
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-chaincode-java | >= 2.3.1, < 2.5.10 | - |
II. Public POCs for CVE-2026-45581
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-45581 (1)
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V. Comments for CVE-2026-45581
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