DayuanJiang next-ai-draw-io up to 0.4.14 POST allocation of resources

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.29

Summaryinfo

A vulnerability described as problematic has been identified in DayuanJiang next-ai-draw-io up to 0.4.14. The impacted element is an unknown function of the component POST Handler. Executing a manipulation can lead to allocation of resources. This vulnerability is tracked as CVE-2026-40608. The attack is restricted to local execution. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in DayuanJiang next-ai-draw-io up to 0.4.14. This vulnerability affects an unknown code block of the component POST Handler. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-40608 since 04/14/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available.

Upgrading to version 0.4.15 eliminates this vulnerability. Applying the patch 31819f413cc4b329a1cb81e5fccd0cd98c1fd665 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-24217). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.2
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: next-ai-draw-io 0.4.15
Patch: 31819f413cc4b329a1cb81e5fccd0cd98c1fd665

Timelineinfo

04/14/2026 CVE reserved
04/21/2026 +7 days Advisory disclosed
04/21/2026 +0 days VulDB entry created
04/21/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-9q7h-wgfw-p378
Status: Confirmed

CVE: CVE-2026-40608 (🔒)
GCVE (CVE): GCVE-0-2026-40608
GCVE (VulDB): GCVE-100-358552
EUVD: 🔒

Entryinfo

Created: 04/21/2026 20:56
Updated: 04/21/2026 21:28
Changes: 04/21/2026 20:56 (67), 04/21/2026 21:28 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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