---
id: CVE-2026-63416
title: draw.io is a configurable diagramming and whiteboarding application
summary: >-
  draw.io is a configurable diagramming and whiteboarding application. Prior to
  version 30.2.7, src/main/java/com/mxgraph/online/ExportProxyServlet.java uses
  request.getPathInfo() to build a proxyPath and appends it directly to
  EXPORT_URL …
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-22
vendor: jgraph
product: drawio
affected:
  - drawio < 30.2.7
published: '2026-09-21'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T23:17:15.940'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63416'
references:
  - url: >-
      https://github.com/jgraph/drawio/commit/650fbd742814f6502f78248dc2d8e2aaa5e42b5e
    label: security-advisories@github.com
  - url: 'https://github.com/jgraph/drawio/releases/tag/v30.2.7'
    label: security-advisories@github.com
  - url: 'https://github.com/jgraph/drawio/security/advisories/GHSA-3pq9-9hg4-ggfw'
    label: security-advisories@github.com
  - url: 'https://github.com/jgraph/drawio/security/advisories/GHSA-3pq9-9hg4-ggfw'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00329
epssPercentile: 0.23291
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-24T22:19:01.068228Z'
ingestedAt: '2026-09-21T16:49:07.872Z'
---

## Overview

draw.io is a configurable diagramming and whiteboarding application. Prior to version 30.2.7, src/main/java/com/mxgraph/online/ExportProxyServlet.java uses request.getPathInfo() to build a proxyPath and appends it directly to EXPORT_URL without rejecting dot segments or confirming that the normalized destination remains under the configured export path. An unauthenticated request containing traversal segments can therefore address unintended routes on the internal export server, and the servlet forwards all request headers and the request body to that destination, allowing arbitrary header injection. Depending on the export service configuration, exploitation can expose administration, debugging, health, or configuration endpoints and can permit unintended internal actions. This issue is fixed in version 30.2.7.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.