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

一分钟漏洞结论

影响对象
jgraph drawio
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

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

影响版本矩阵 1

厂商产品 版本范围状态
jgraph drawio < 30.2.7 affected
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一、 漏洞 CVE-2026-63416 基础信息

漏洞信息

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Vulnerability Title
draw.io: Path traversal in ExportProxyServlet allows access to arbitrary backend endpoints
来源: 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.
来源: 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
来源: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
jgraph drawio < 30.2.7 -

二、漏洞 CVE-2026-63416 的公开POC

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三、漏洞 CVE-2026-63416 的情报信息

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CVE-2026-63416 其他参考 (2)

同批安全公告 · jgraph · 2026-09-21 · 共 5 条

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

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