CVE-2026-50756

An issue in DayuanJiang next-ai-draw-io version 0.4.13 allows a remote attacker to obtain sensitive information via the X-Forwarded-For header.

Next AI Draw.io 0.2.1 through 0.4.16 contains a reflected cross-site scripting vulnerability in the mcp query parameter that is interpolated without escaping into HTML and JavaScript. Attackers can craft malicious URLs to execute arbitrary JavaScript in the localhost origin, enabling exfiltration of diagram sessions and API data.

Next AI Draw.io through 0.4.16 contains a server-side request forgery vulnerability in the POST /api/parse-url endpoint due to hostname validation that only checks string patterns without DNS resolution. Unauthenticated attackers can supply hostnames that bypass string validation but resolve to internal addresses, allowing them to reach arbitrary internal HTTP services and exfiltrate responses including cloud metadata.

Cross Site Scripting vulnerability in DayuanJiang next-ai-draw-io 0.4.13 allows a remote attacker to execute arbitrary code via the mcp parameter.

Directory Traversal vulnerability in DayuanJiang next-ai-draw-io 0.4.13 allows a remote attacker to execute arbitrary code via the nex-ai-draw-io/mcp-server.

In Next AI Draw.io before 0.4.15, the embedded HTTP sidecar contains three POST handlers that accumulate the entire request body into memory without size limits. Sending a sufficiently large body (e.g., 500 MiB) exhausts the process heap and crashes the MCP server with an Out-of-Memory error.