ckan-mcp-server: DataStore Table UI resource does not validate postMessage origin (in) and posts to targetOrigin "*" (out)
影響: npm:@aborruso/ckan-mcp-server < 0.4.112 → 0.4.112
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 the document can inject data into the table and interfere with the MCP UI handshake, and the UI's own JSON-RPC messages are broadcast without an origin restriction. Affected code src/resources/d…
| CVE | CVE-2026-76894 |
|---|---|
| 정보원 | GitHub Advisory Database |
| 수집 시각 | 2026. 10. 22. 오전 01:17 |
| 데이터 | Markdown JSON |
2026. 10. 17. 오전 04:23, GitHub Advisory Database에서 "ckan-mcp-server: DataStore Table UI resource does not validate postMessage origin (in) and posts to targetOrigin "*" (out)"을(를) 게시했습니다 (유형: 취약점 권고). 심각도는 "낮음"(low)입니다. 관련 기술: JavaScript / Node.js. CVE: CVE-2026-76894.