Vulnerability Description
draw.io Desktop is the official Electron build of draw.io. Prior to 31.4.4, draw.io Desktop is vulnerable to arbitrary local-file disclosure through the Electron main process's read-side IPC handlers. The readFile, getFileDrafts, getBkpFile, fileStat, isFileWritable, checkFileExists, and watchFile actions operate on a renderer-chosen filesystem path with no blessed-path (assertWritablePath) authorization. The only gates are validateSender — a URL-prefix origin check — plus, for readFile alone, a content "sniff" and a lexical appBaseDir prefix block. The write-side handlers (saveFile, writeFile, saveDraft, deleteFile) are all protected by assertWritablePath; the read side is not. The result is a read/write authorization asymmetry: any frame executing in the app's file:// origin can read the contents of local files that the same origin is explicitly forbidden to write. This issue is fixed in version 31.4.4.
Related Weaknesses (CWE)
References
- https://github.com/jgraph/drawio-desktop/commit/9c933514b8bcc90a91d88c685525a888
- https://github.com/jgraph/drawio-desktop/releases/tag/v31.4.4
- https://github.com/jgraph/drawio-desktop/security/advisories/GHSA-fjgc-8xgj-rvh4
- https://github.com/jgraph/drawio-desktop/security/advisories/GHSA-fjgc-8xgj-rvh4
FAQ
What is CVE-2026-114606?
CVE-2026-114606 is a documented vulnerability. draw.io Desktop is the official Electron build of draw.io. Prior to 31.4.4, draw.io Desktop is vulnerable to arbitrary local-file disclosure through the Electron main process's read-side IPC handlers....
How severe is CVE-2026-114606?
CVSS scoring is not yet available for CVE-2026-114606. Check NVD for updates.
Is there a patch for CVE-2026-114606?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.