Vulnerability-Lookup

CVE-2026-45581 (GCVE-0-2026-45581)

Vulnerability from cvelistv5 – Published: 2026-06-08 16:53 – Updated: 2026-06-09 15:51

Title

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

Summary

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.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-532 - Insertion of Sensitive Information into Log File

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/hyperledger/fabric-chaincode-j…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
hyperledger	fabric-chaincode-java	Affected: >= 2.3.1, < 2.5.10

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-45581

Vulnerability from fkie_nvd - Published: 2026-06-08 17:16 - Updated: 2026-07-23 07:10

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Summary

References

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

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "fabric-chaincode-java",
          "vendor": "hyperledger",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.3.1, \u003c 2.5.10"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "fabric-chaincode-java es una implementaci\u00f3n basada en Java de las API shim de chaincode de Hyperledger Fabric. Desde la versi\u00f3n 2.3.1 hasta antes de la versi\u00f3n 2.5.10, cuando el chaincode se despliega en modo chaincode-as-a-service con TLS habilitado, el registro de nivel INFO del servidor de chaincode incluye la contrase\u00f1a de la clave privada TLS en texto plano. Un atacante con acceso a los registros del servidor de chaincode podr\u00eda recuperar la contrase\u00f1a de la clave privada TLS. Si el atacante tambi\u00e9n puede obtener la clave privada TLS, podr\u00eda suplantar la identidad del servidor de chaincode. Este problema ha sido parcheado en la versi\u00f3n 2.5.10."
    }
  ],
  "id": "CVE-2026-45581",
  "lastModified": "2026-07-23T07:10:00.113",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
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    }
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}

GHSA-WG5X-3G47-V38R

Vulnerability from github – Published: 2026-05-19 15:40 – Updated: 2026-06-09 13:12

Summary

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

Details

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.

Recommendation

Update to the fixed version of the chaincode runtime.
Redact or remove existing logs that contain the TLS private key password.
Change the TLS private key password.

Mitigation

Impacted deployments can mitigate the vulnerability by restricting the logging level to WARNING or higher so that INFO level logs are not written.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.5.9"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.hyperledger.fabric-chaincode-java:fabric-chaincode-shim"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.3.1"
            },
            {
              "fixed": "2.5.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-45581"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-532"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-19T15:40:13Z",
    "nvd_published_at": "2026-06-08T17:16:44Z",
    "severity": "MODERATE"
  },
  "details": "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.\n\n### Recommendation\n\n- Update to the fixed version of the chaincode runtime.\n- Redact or remove existing logs that contain the TLS private key password.\n- Change the TLS private key password.\n\n### Mitigation\n\nImpacted deployments can mitigate the vulnerability by restricting the logging level to WARNING or higher so that INFO level logs are not written.",
  "id": "GHSA-wg5x-3g47-v38r",
  "modified": "2026-06-09T13:12:11Z",
  "published": "2026-05-19T15:40:13Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/hyperledger/fabric-chaincode-java/security/advisories/GHSA-wg5x-3g47-v38r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45581"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/hyperledger/fabric-chaincode-java"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "fabric-chaincode-java: TLS Private Key Password Disclosed in INFO Startup Logs in Chaincode-as-a-Service Mode"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-45581 (GCVE-0-2026-45581)

FKIE_CVE-2026-45581

GHSA-WG5X-3G47-V38R

Recommendation

Mitigation

Tags

Sightings

Nomenclature