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…

在 GitHub Advisory Database 阅读

2026/10/17 04:23，GitHub Advisory Database 发布了“ckan-mcp-server: DataStore Table UI resource does not validate postMessage origin (in) and posts to targetOrigin "*" (out)”（类型：漏洞公告）。严重程度为“低危”（low）。相关技术：JavaScript / Node.js。CVE：CVE-2026-76894。