{"id":"EUVD-2026-116490","revision":"86bf7652c91242f199dd21096d7858d6","records":[{"revision":"86bf7652c91242f199dd21096d7858d6","observedAt":"2026-11-05T13:44:30.476+00:00","statement":{"source":"euvd","id":"EUVD-2026-116490","aliases":["CVE-2026-76894","GHSA-vqff-r82h-9crc"],"title":"CKAN MCP Server is a tool for querying CKAN open data portals. Prior to 0.4.112, the DataStore table UI in src/resources/datastore-table-ui.ts accepts window message events without validating event.origin and sends JSON-RPC messages through…","description":"CKAN MCP Server is a tool for querying CKAN open data portals. Prior to 0.4.112, the DataStore table UI in src/resources/datastore-table-ui.ts accepts window message events without validating event.origin and sends JSON-RPC messages through postMessage with a wildcard target origin. A frame that can reach the embedded document can inject fabricated fields or records, spoof pending ui/initialize responses, disrupt the MCP UI handshake, or receive outbound messages when the resource is embedded by an untrusted parent. Values are HTML escaped, so the demonstrated content injection is display spoofing rather than script execution, and exploitability depends on the host embedding model. This issue is fixed in version 0.4.112.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","score":3.1,"severity":null}],"references":["https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-vqff-r82h-9crc","https://github.com/ondata/ckan-mcp-server/commit/3b827af72b228d42aa7b0d7dac5347d16af3f4e5","https://github.com/ondata/ckan-mcp-server/releases/tag/v0.4.112"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-116490","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Nov 3, 2026, 8:33:35 PM","dateUpdated":"Nov 3, 2026, 8:33:35 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-116490","identifiers":["EUVD-2026-116490","CVE-2026-76894","GHSA-vqff-r82h-9crc"]},"retained":false,"historicalAffected":[]}],"coverage":[]}