What is CVE-2026-45581?

CVE-2026-45581 is a medium-severity vulnerability in Hyperledger Fabric-Chaincode-Java, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2026-06-08.

How severe is CVE-2026-45581?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Information disclosure in Hyperledger Fabric-Chaincode-Java

CVE-2026-45581

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.

EPSS: 0.001 (1.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Hyperledger Fabric-chaincode-java — versions >= 2.3.1, < 2.5.10

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-45581?: CVE-2026-45581 is a medium-severity vulnerability in Hyperledger Fabric-Chaincode-Java, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2026-06-08.
How severe is CVE-2026-45581?: Medium severity. CVSS v3 base score is 5.5 out of 10.