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CVE-2026-33060— CKAN MCP Server: SSRF via base_url allows access to internal networks

Quick assessment

Affected
ondata ckan-mcp-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CKAN MCP Server是onData开源的一个连接AI助手与开放数据平台的自然语言查询工具。 CKAN MCP Server 0.4.85之前版本存在代码问题漏洞，该漏洞源于base_url参数缺乏验证，可能导致内部网络扫描、云元数据窃取或SQL/SPARQL注入。

CVSS 5.3 · Medium EPSS 0.30% · P21
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I. Basic Information for CVE-2026-33060

Vulnerability Information
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Vulnerability Title
CKAN MCP Server: SSRF via base_url allows access to internal networks
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
CKAN MCP Server 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CKAN MCP Server是onData开源的一个连接AI助手与开放数据平台的自然语言查询工具。 CKAN MCP Server 0.4.85之前版本存在代码问题漏洞，该漏洞源于base_url参数缺乏验证，可能导致内部网络扫描、云元数据窃取或SQL/SPARQL注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ondata ckan-mcp-server < 0.4.85 -

II. Public POCs for CVE-2026-33060

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III. Intelligence Information for CVE-2026-33060

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Patches & Fixes for CVE-2026-33060 (1)

Vendor Advisories for CVE-2026-33060 (1)

IV. Related Vulnerabilities

Same product: ckan-mcp-server
Same vendor: ondata
Same weakness: CWE-918

V. Comments for CVE-2026-33060

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