Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-63416— draw.io: Path traversal in ExportProxyServlet allows access to arbitrary backend endpoints

Quick assessment

Affected
jgraph drawio
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 s

CVSS 3.7 · Low EPSS 0.27% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
jgraph drawio < 30.2.7 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-63416

Vulnerability Information

Shenlong is analyzing...

Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
draw.io: Path traversal in ExportProxyServlet allows access to arbitrary backend endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
jgraph drawio < 30.2.7 -

II. Public POCs for CVE-2026-63416

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-63416

请登录查看更多情报信息。

Other References for CVE-2026-63416 (2)

Same Patch Batch · jgraph · 2026-09-21 · 5 CVEs total

CVE-2026-76898 7.7 HIGH draw.io: Unauthenticated SSRF via IPv6 ULA blocklist bypass in /embed2.js
CVE-2026-63334 6.8 MEDIUM draw.io: SSRF via DNS rebinding in ProxyServlet bypasses private IP blocklist
CVE-2026-58504 6.1 MEDIUM draw.io: Stored XSS on file open via editable=0 sibling cell — patch bypass of CVE-2026-46
CVE-2026-63373 4.2 MEDIUM draw.io: OAuth CSRF via missing state validation on self-hosted deployments allows session

IV. Related Vulnerabilities

Same product: drawio
Same vendor: jgraph
Same weakness: CWE-22

V. Comments for CVE-2026-63416

No comments yet

Leave a comment