{
    "document": {
        "category": "csaf_base",
        "csaf_version": "2.0",
        "distribution": {
            "tlp": {
                "label": "WHITE"
            }
        },
        "lang": "en",
        "notes": [
            {
                "category": "legal_disclaimer",
                "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
            }
        ],
        "publisher": {
            "category": "coordinator",
            "contact_details": "cert@ncsc.nl",
            "name": "National Cyber Security Centre",
            "namespace": "https://www.ncsc.nl/"
        },
        "title": "CVE-2026-33060",
        "tracking": {
            "current_release_date": "2026-03-25T10:03:51.150108Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-33060",
            "initial_release_date": "2026-03-18T13:39:37.303425Z",
            "revision_history": [
                {
                    "date": "2026-03-18T13:39:37.303425Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)."
                },
                {
                    "date": "2026-03-18T13:39:40.922125Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-03-19T11:40:14.995825Z",
                    "number": "3",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)."
                },
                {
                    "date": "2026-03-20T18:27:09.989614Z",
                    "number": "4",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-03-20T18:27:13.719157Z",
                    "number": "5",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-20T18:28:47.140801Z",
                    "number": "6",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-03-20T18:28:50.312224Z",
                    "number": "7",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-20T21:41:37.642713Z",
                    "number": "8",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-03-20T21:59:06.017990Z",
                    "number": "9",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-20T21:59:09.816506Z",
                    "number": "10",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-21T13:47:22.891087Z",
                    "number": "11",
                    "summary": "References removed (1)."
                },
                {
                    "date": "2026-03-22T00:51:48.299433Z",
                    "number": "12",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-03-22T11:24:51.229991Z",
                    "number": "13",
                    "summary": "References removed (1)."
                },
                {
                    "date": "2026-03-23T00:53:58.316090Z",
                    "number": "14",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-03-23T05:15:54.900945Z",
                    "number": "15",
                    "summary": "References removed (1)."
                },
                {
                    "date": "2026-03-24T20:43:09.669665Z",
                    "number": "16",
                    "summary": "Unknown change."
                },
                {
                    "date": "2026-03-24T20:56:19.151628Z",
                    "number": "17",
                    "summary": "References created (1)."
                }
            ],
            "status": "interim",
            "version": "17"
        }
    },
    "product_tree": {
        "branches": [
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<0.4.85",
                                "product": {
                                    "name": "vers:unknown/<0.4.85",
                                    "product_id": "CSAFPID-5874529"
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "ckan-mcp-server"
                    }
                ],
                "category": "vendor",
                "name": "ondata"
            }
        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-33060",
            "cwe": {
                "id": "CWE-918",
                "name": "Server-Side Request Forgery (SSRF)"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "## Summary\n\nThe `@aborruso/ckan-mcp-server` MCP server provides tools including `ckan_package_search` and `sparql_query` that accept a `base_url` parameter, making HTTP requests to arbitrary endpoints without restriction. A CKAN portal client has no legitimate reason to contact cloud metadata or internal network services.\n\n## Severity\n\nAttack complexity is HIGH because exploitation requires prompt injection via malicious content (webpage, document) while the victim's AI assistant has this MCP server connected.\n\n## Proof of Concept\n\nTested inside Docker-in-Docker isolated environment with canary HTTP sidecar.\n\n```json\n{\"tool\": \"ckan_package_search\", \"arguments\": {\"base_url\": \"http://canary:8080/ssrf\", \"query\": \"test\"}}\n```\n**Result**: Canary received **9 HTTP requests**. The high request volume confirms no rate limiting or URL validation.\n\n## Root Cause\n\nNo URL validation on `base_url` parameter. No private IP blocking (RFC 1918, link-local 169.254.x.x), no cloud metadata blocking. The `sparql_query` and `ckan_datastore_search_sql` tools also accept arbitrary base URLs and expose injection surfaces.\n\n## Impact\n\nInternal network scanning, cloud metadata theft (IAM credentials via IMDS at 169.254.169.254), potential SQL/SPARQL injection via unsanitized query parameters. Attack requires prompt injection to control the `base_url` parameter.\n\n## Recommended Fix\n\n1. Validate `base_url` against a configurable allowlist of permitted CKAN portals\n2. Block private IP ranges (RFC 1918, link-local)\n3. Block cloud metadata endpoints (169.254.169.254)\n4. Sanitize SQL input for datastore queries\n5. SPARQL endpoint allowlist\n\n## Credit\n\nDiscovered by [Andrei Boldyrev](https://github.com/abcgco) of Munio Security Research using [munio](https://munio.dev)",
                    "title": "github - https://github.com/advisories/GHSA-3xm7-qw7j-qc8v"
                },
                {
                    "category": "description",
                    "text": "## Summary\n\nThe `@aborruso/ckan-mcp-server` MCP server provides tools including `ckan_package_search` and `sparql_query` that accept a `base_url` parameter, making HTTP requests to arbitrary endpoints without restriction. A CKAN portal client has no legitimate reason to contact cloud metadata or internal network services.\n\n## Severity\n\nAttack complexity is HIGH because exploitation requires prompt injection via malicious content (webpage, document) while the victim's AI assistant has this MCP server connected.\n\n## Proof of Concept\n\nTested inside Docker-in-Docker isolated environment with canary HTTP sidecar.\n\n```json\n{\"tool\": \"ckan_package_search\", \"arguments\": {\"base_url\": \"http://canary:8080/ssrf\", \"query\": \"test\"}}\n```\n**Result**: Canary received **9 HTTP requests**. The high request volume confirms no rate limiting or URL validation.\n\n## Root Cause\n\nNo URL validation on `base_url` parameter. No private IP blocking (RFC 1918, link-local 169.254.x.x), no cloud metadata blocking. The `sparql_query` and `ckan_datastore_search_sql` tools also accept arbitrary base URLs and expose injection surfaces.\n\n## Impact\n\nInternal network scanning, cloud metadata theft (IAM credentials via IMDS at 169.254.169.254), potential SQL/SPARQL injection via unsanitized query parameters. Attack requires prompt injection to control the `base_url` parameter.\n\n## Recommended Fix\n\n1. Validate `base_url` against a configurable allowlist of permitted CKAN portals\n2. Block private IP ranges (RFC 1918, link-local)\n3. Block cloud metadata endpoints (169.254.169.254)\n4. Sanitize SQL input for datastore queries\n5. SPARQL endpoint allowlist\n\n## Credit\n\nDiscovered by [Andrei Boldyrev](https://github.com/abcgco) of Munio Security Research using [munio](https://munio.dev)",
                    "title": "github - https://api.github.com/advisories/GHSA-3xm7-qw7j-qc8v"
                },
                {
                    "category": "description",
                    "text": "CKAN MCP Server is a tool for querying CKAN open data portals. Versions prior to 0.4.85 provide tools including ckan_package_search and sparql_query that accept a base_url parameter, making HTTP requests to arbitrary endpoints without restriction. A CKAN portal client has no legitimate reason to contact cloud metadata or internal network services. There is no URL validation on base_url parameter. No private IP blocking (RFC 1918, link-local 169.254.x.x), no cloud metadata blocking. The sparql_query and ckan_datastore_search_sql tools also accept arbitrary base URLs and expose injection surfaces. An attack can lead to internal network scanning, cloud metadata theft (IAM credentials via IMDS at 169.254.169.254), potential SQL/SPARQL injection via unsanitized query parameters. Attack requires prompt injection to control the base_url parameter. This issue has been fixed in version 0.4.85.",
                    "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/33xxx/CVE-2026-33060.json"
                },
                {
                    "category": "description",
                    "text": "CKAN MCP Server is a tool for querying CKAN open data portals. Versions prior to 0.4.85 provide tools including ckan_package_search and sparql_query that accept a base_url parameter, making HTTP requests to arbitrary endpoints without restriction. A CKAN portal client has no legitimate reason to contact cloud metadata or internal network services. There is no URL validation on base_url parameter. No private IP blocking (RFC 1918, link-local 169.254.x.x), no cloud metadata blocking. The sparql_query and ckan_datastore_search_sql tools also accept arbitrary base URLs and expose injection surfaces. An attack can lead to internal network scanning, cloud metadata theft (IAM credentials via IMDS at 169.254.169.254), potential SQL/SPARQL injection via unsanitized query parameters. Attack requires prompt injection to control the base_url parameter. This issue has been fixed in version 0.4.85.",
                    "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-33060"
                },
                {
                    "category": "other",
                    "text": "0.00028",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "4.0",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "The value of the most recent EPSS score, There is cwe data available from source Nvd",
                    "title": "NCSC Score top decreasing factors"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-5874529"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - github",
                    "url": "https://github.com/advisories/GHSA-3xm7-qw7j-qc8v"
                },
                {
                    "category": "external",
                    "summary": "Source raw - github",
                    "url": "https://api.github.com/advisories/GHSA-3xm7-qw7j-qc8v"
                },
                {
                    "category": "external",
                    "summary": "Source - github",
                    "url": "https://api.github.com/advisories/GHSA-3xm7-qw7j-qc8v"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/33xxx/CVE-2026-33060.json"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-33060"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; github; nvd",
                    "url": "https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-3xm7-qw7j-qc8v"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; github; nvd",
                    "url": "https://github.com/kysely-org/kysely/commit/0a602bff2f442f6c26d5e047ca8f8715179f6d24"
                },
                {
                    "category": "external",
                    "summary": "Reference - github",
                    "url": "https://github.com/advisories/GHSA-3xm7-qw7j-qc8v"
                },
                {
                    "category": "external",
                    "summary": "Reference - github",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33060"
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM"
                    },
                    "products": [
                        "CSAFPID-5874529"
                    ]
                }
            ],
            "title": "CVE-2026-33060"
        }
    ]
}