Vulnerability-Lookup

GHSA-MRPQ-9JR3-RQQ9

Vulnerability from github – Published: 2025-10-29 15:31 – Updated: 2025-11-05 20:52

Summary

Jenkins MCP Server Plugin does not perform permission checks in multiple MCP tools

Details

Jenkins MCP Server Plugin 0.84.v50ca_24ef83f2 and earlier does not perform permission checks in several MCP tools.

This allows to do the following:

Attackers with Item/Read permission can obtain information about the configured SCM in a job despite lacking Item/Extended Read permission (getJobScm).
Attackers with Item/Read permission can trigger new builds of a job despite lacking Item/Build permission (triggerBuild).
Attackers without Overall/Read permission can retrieve the names of configured clouds (getStatus).

MCP Server Plugin 0.86.v7d3355e6a_a_18 performs permission checks for the affected MCP tools.

Severity

5.4 (Medium)


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

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.jenkins.plugins:mcp-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.86.v7d3355e6a"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-64132"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-29T18:52:20Z",
    "nvd_published_at": "2025-10-29T14:15:57Z",
    "severity": "MODERATE"
  },
  "details": "Jenkins MCP Server Plugin 0.84.v50ca_24ef83f2 and earlier does not perform permission checks in several MCP tools.\n\nThis allows to do the following:\n\n- Attackers with Item/Read permission can obtain information about the configured SCM in a job despite lacking Item/Extended Read permission (`getJobScm`).\n\n- Attackers with Item/Read permission can trigger new builds of a job despite lacking Item/Build permission (`triggerBuild`).\n\n- Attackers without Overall/Read permission can retrieve the names of configured clouds (`getStatus`).\n\nMCP Server Plugin 0.86.v7d3355e6a_a_18 performs permission checks for the affected MCP tools.",
  "id": "GHSA-mrpq-9jr3-rqq9",
  "modified": "2025-11-05T20:52:12Z",
  "published": "2025-10-29T15:31:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64132"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jenkinsci/mcp-server-plugin/commit/59de6a268b4c6844a3a9c6c55a541de183e71a97"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jenkinsci/mcp-server-plugin"
    },
    {
      "type": "WEB",
      "url": "https://www.jenkins.io/security/advisory/2025-10-29/#SECURITY-3622"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/10/29/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Jenkins MCP Server Plugin does not perform permission checks in multiple MCP tools"
}

CVE-2025-64132 (GCVE-0-2025-64132)

Vulnerability from cvelistv5 – Published: 2025-10-29 13:29 – Updated: 2025-11-04 21:14

Summary

Jenkins MCP Server Plugin 0.84.v50ca_24ef83f2 and earlier does not perform permission checks in multiple MCP tools, allowing attackers to trigger builds and obtain information about job and cloud configuration they should not be able to access.

Severity

5.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-29 14:05 UTC

CWE

CWE-862 - Missing Authorization

Assigner

jenkins mitre root

References

2 references

URL	Tags
https://www.jenkins.io/security/advisory/2025-10-…	vendor-advisory
http://www.openwall.com/lists/oss-security/2025/10/29/2

Impacted products

1 product

Vendor	Product	Version
Jenkins Project	Jenkins MCP Server Plugin	Affected: 0 , ≤ 0.84.v50ca_24ef83f2 (maven)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.4,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-64132",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-29T14:05:29.975005Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-862",
                "description": "CWE-862 Missing Authorization",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-29T14:05:33.219Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T21:14:23.718Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/29/2"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Jenkins MCP Server Plugin",
          "vendor": "Jenkins Project",
          "versions": [
            {
              "lessThanOrEqual": "0.84.v50ca_24ef83f2",
              "status": "affected",
              "version": "0",
              "versionType": "maven"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Jenkins MCP Server Plugin 0.84.v50ca_24ef83f2 and earlier does not perform permission checks in multiple MCP tools, allowing attackers to trigger builds and obtain information about job and cloud configuration they should not be able to access."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-29T13:29:40.401Z",
        "orgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
        "shortName": "jenkins"
      },
      "references": [
        {
          "name": "Jenkins Security Advisory 2025-10-29",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.jenkins.io/security/advisory/2025-10-29/#SECURITY-3622"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
    "assignerShortName": "jenkins",
    "cveId": "CVE-2025-64132",
    "datePublished": "2025-10-29T13:29:40.401Z",
    "dateReserved": "2025-10-28T07:34:37.541Z",
    "dateUpdated": "2025-11-04T21:14:23.718Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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