CVE-2026-40608

6.2 MEDIUM
Published: April 21, 2026 Modified: April 27, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/DayuanJiang/next-ai-draw-io/security/advisories/GHSA-9q7h-wgfw-p378
Source: security-advisories@github.com
Exploit Mitigation Vendor Advisory
https://github.com/DayuanJiang/next-ai-draw-io/security/advisories/GHSA-9q7h-wgfw-p378
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Mitigation Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.2 / 10.0
EPSS (Exploit Probability)
0.1%
4th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

dayuanjiang