vetkit.java.android.webview-universal-file-access

A WebView lets file:// pages read other files or any origin (setAllowUniversalAccessFromFileURLs/setAllowFileAccessFromFileURLs).

Last updated: 2026-11-01

Suite: Security

java

A WebView lets file:// pages read other files or any origin (setAllowUniversalAccessFromFileURLs/setAllowFileAccessFromFileURLs).

Category: SECURITY · Engine rule severity: ERROR

How to fix it

Keep both settings false (the default since API 16) and serve local content through WebViewAssetLoader.

References

https://developer.android.com/privacy-and-security/risks/webview-unsafe-file-inclusion

Source: packages/engine/rules/sast/java.yml.

Generated from shipped rule definitions at build time. Matching is a review signal, not proof of exploitability. “generic” denotes text matching, not complete language or framework coverage. Runtime configuration and available tools affect whether a rule runs.