CVE-2026-33060: CKAN MCP Server is a tool for querying CKAN open data portals. Versions prior to 0.4.85 provide tool…
- Occurred
- Mar 20, 2026
- Published
- Mar 20, 2026
- Source
- NVD CVE
Summary
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.
Tags
- CVE
- CVE-2026-33060
- cvss:MEDIUM
- agent-fail:injection-direct
- agent-fail:authorization
- agent-cause:missing-guardrail
- agent-cause:config-error
Classification
Rationale: MCP server vulnerability allows prompt injection leading to internal network scanning and cloud metadata theft via unvalidated base_url parameter.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8