CVE-2026-73845
CKAN MCP Server: MQA server allowlist bypass via unanchored regex (`isValidMqaServer`)
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
CKAN MCP Server is a tool for querying CKAN open data portals. Prior to 0.4.112, 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, allowing suffix-host and URL-userinfo values to target an attacker-controlled host and return a spoofed response. This issue is fixed in version 0.4.112.
| CWE | CWE-20 CWE-625 CWE-918 |
| Vendor | ondata |
| Product | ckan-mcp-server |
| Published | Aug 14, 2026 |
| Last Updated | Aug 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
ondata / ckan-mcp-server
< 0.4.112