CVE-2026-40608

MEDIUM

6.2

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.

CVE Details

CVSS v3.1 Score6.2

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/21/2026

Last Modified4/22/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-770

References

https://github.com/DayuanJiang/next-ai-draw-io/commit/31819f413cc4b329a1cb81e5fccd0cd98c1fd665(security-advisories@github.com)

https://github.com/DayuanJiang/next-ai-draw-io/security/advisories/GHSA-9q7h-wgfw-p378(security-advisories@github.com)

https://github.com/DayuanJiang/next-ai-draw-io/security/advisories/GHSA-9q7h-wgfw-p378(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.