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.
Metrics
Affected Vendors & Products
References
History
Thu, 24 Sep 2026 23:30:00 +0000
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ssvc
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Mon, 21 Sep 2026 18:45:00 +0000
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Jgraph
Jgraph drawio |
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Jgraph
Jgraph drawio |
Mon, 21 Sep 2026 16:30:00 +0000
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| 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. | |
| Title | draw.io: Path traversal in ExportProxyServlet allows access to arbitrary backend endpoints | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-21T16:18:39.198Z
Updated: 2026-09-24T22:19:57.647Z
Reserved: 2026-07-16T19:20:28.988Z
Link: CVE-2026-63416
Updated: 2026-09-24T22:19:53.280Z
Status : Deferred
Published: 2026-09-21T17:17:39.503
Modified: 2026-09-24T23:17:15.940
Link: CVE-2026-63416
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