🛡️ CVE-2026-40608
🟡 CVSS 6.2 — Medium ⚠️ Exploit Public CWE-770 NVD
6.2
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Next AI Draw.io is a next.js web application that integrates AI capabilities with draw.io diagrams. Prior to 0.4.15, the embedded HTTP sidecar contains three POST handlers (/api/state, /api/restore, and /api/history-svg) that process incoming requests by accumulating the entire request body into a JavaScript string without any size limitations. Node.js buffers the entire payload in the V8 heap. Sending a sufficiently large body (e.g., 500 MiB or more) will exhaust the process heap memory, leading to an Out-of-Memory (OOM) error that crashes the MCP server. This vulnerability is fixed in 0.4.15.

Details

Severity MEDIUM
CVSS Score 6.2
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-770
Public Exploit ⚠️ Yes
Source NVD
Published 2026-04-21
Updated 2026-06-02
Modified 2026-04-27

Affected Packages

Software From version Fixed in
next-ai-draw.io — 0.4.15

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