Medium severity5.5GHSA Advisory· Published Jun 8, 2026· Updated Jun 9, 2026

CVE-2026-45581

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
org.hyperledger.fabric-chaincode-java:fabric-chaincode-shimMaven	>= 2.3.1, < 2.5.10	2.5.10

Affected products

Hyperledger/Fabric Chaincode JavaGHSA
Range: >= 2.3.1, <= 2.5.9

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-wg5x-3g47-v38rghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-45581ghsaADVISORY
github.com/hyperledger/fabric-chaincode-java/security/advisories/GHSA-wg5x-3g47-v38rnvdWEB

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cvss	0.358
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000