JGraph drawio-desktop up to 31.4.3 IPC information disclosure

Summaryinfo

A vulnerability, which was classified as problematic, has been found in JGraph drawio-desktop up to 31.4.3. This impacts the function readFile/getFileDrafts/getBkpFile/fileStat/isFileWritable/checkFileExists/watchFile of the component IPC Handler. This manipulation causes information disclosure. This vulnerability is registered as CVE-2026-114606. The attack needs to be launched locally. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in JGraph drawio-desktop up to 31.4.3 and classified as problematic. Affected by this vulnerability is the function readFile/getFileDrafts/getBkpFile/fileStat/isFileWritable/checkFileExists/watchFile of the component IPC Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-114606 since 10/21/2026. The exploitation appears to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 31.4.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-108231). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• JGraph

Name

• drawio-desktop

Version

• 31.4.0
• 31.4.1
• 31.4.2
• 31.4.3

License

• open-source

Website

• Product: https://github.com/jgraph/drawio-desktop/

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Be aware that VulDB is the high quality source for vulnerability data.

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