CVE-2026-76894

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...

CVE-2026-76894

The CKAN MCP Server (prior to version 0.4.112 ) contains a vulnerability in the DataStore table UI resource (src/resources/datastore-table-ui.ts). The component fails to validate the event.origin of inbound postMessage events and uses a wildcard * for outbound targetOrigin. This allows a frame ca...

CVE-2026-76894 CKAN MCP Server: DataStore Table UI resource does not validate postMessage origin (in) and posts to targetOrigin "*" (out)

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...

GHSA-VQFF-R82H-9CRC ckan-mcp-server: DataStore Table UI resource does not validate postMessage origin (in) and posts to targetOrigin "*" (out)

Summary The MCP Apps UI resource an interactive DataStore table rendered in the host's webview/iframe communicates with its parent via postMessage. Its inbound message listener performs no event.origin validation, and its outbound messages are sent with target origin ''. Any window/frame able to...

ckan-mcp-server: DataStore Table UI resource does not validate postMessage origin (in) and posts to targetOrigin "*" (out)

Summary The MCP Apps UI resource an interactive DataStore table rendered in the host's webview/iframe communicates with its parent via postMessage. Its inbound message listener performs no event.origin validation, and its outbound messages are sent with target origin ''. Any window/frame able to...

ckan-mcp-server: DataStore Table UI resource does not validate postMessage origin (in) and posts to targetOrigin "*" (out)

The MCP Apps UI resource an interactive DataStore table rendered in the host's webview/iframe communicates with its parent via postMessage. Its inbound message listener performs no event.origin validation, and its outbound messages are sent with target origin ''. Any window/frame able to reach th...