Plango
Get Plango

For developers

Mac security

← AI agent vulnerabilities

CVE-2026-33060

CKAN MCP Server

5.3
Severity
Medium
Published
March 20, 2026
Last modified
June 17, 2026

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.

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

Weakness

References

CVE-2026-33060 on NVD

Listed in

MediumMCP serversServer-side request forgery

More CKAN MCP Server CVEs

Sep 21
CVE-2026-616125.7

The SSRF guard `validateServerUrl` (added for CVE-2026-33060, extended for CVE-2026-53509) validates only the hostname string and never resolves DNS.

 Aug 21
CVE-2026-535095.7

A known vulnerability CVE-2026-33060 indicated tools including ckan_package_search and sparql_query that accept a base_url parameter had the risk of making HTTP requests to arbitrary endpoints without…

 Aug 14
CVE-2026-738466.5

CanonicalizeParams in src/utils/cache.ts serializes request parameters with unescaped ampersand, equals-sign, and vertical-bar delimiters, allowing different logical parameter sets used by buildCacheKey to…

 Aug 14
CVE-2026-738455.3

The ckan_get_mqa_quality and ckan_get_mqa_quality_details tools in src/tools/quality.ts use isValidMqaServer to validate the server_url parameter with a prefix-only regular expression for dati.gov.it,…

 Aug 14
CVE-2026-738443.7

Error paths reflect raw upstream response bodies and internal exception messages back to the caller instead of a sanitized, generic message.