CVE-2026-45581
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
ProductOrg.hyperledger.fabric-chaincode-java:fabric-chaincode-shim
PublishedJun 8, 2026
First seenJun 8, 2026
Weakness typeCWE-532CWE-532
How to fix
Update
- org.hyperledger.fabric-chaincode-java:fabric-chaincode-shim2.5.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| org.hyperledger.fabric-chaincode-java:fabric-chaincode-shimMaven | 2.3.1 ≤ v < 2.5.10 | 2.5.10 |
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