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fix: path traversal vulnerability, #851 (#855)

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* Fix Path Traversal fallback

* Update loader.ts

Fixed nested

* Update loader.ts

padding fix

* refactor: reuse root enforcing

* docs: update test case and docs

---------

Co-authored-by: MorielHarush <[email protected]>
This commit is contained in:
Yang Jun
2026-03-08 02:36:09 +08:00
committed by GitHub
co-authored by MorielHarush
parent 85233e0568
commit 3cd024d652
11 changed files with 47 additions and 33 deletions
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docs/source/tutorials/render-file.md
+7 -13
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@@ -45,26 +45,20 @@ It can be a string-typed path (see above example), or a list of root directories
```javascript
var engine = new Liquid({
root: ['views/', 'views/partials/'],
root: ['views/'],
partials: ['views/partials/'],
layouts: ['views/layouts/'],
extname: '.liquid'
});
```
{% note tip Relative Paths %}Relative paths in <code>root</code> will be resolved against <code>cwd()</code>.{% endnote %}
When `{% raw %}{% render "foo" %}{% endraw %}` is rendered or `liquid.renderFile('foo')` is called, the following files will be looked up and the first existing file will be used:
- When `parse()`, `render()` functions are called, for example `liquid.renderFile('foo')`, templates under `root` will be looked up.
- When a partial is requested, for example `{% raw %}{% render "foo" %}{% endraw %}`, templates under `partials` will be looked up.
- When a layout is requested, for example `{% raw %}{% layout "foo" %}{% endraw %}`, templates under `layouts` will be looked up.
- `cwd()`/views/foo.liquid
- `cwd()`/views/partials/foo.liquid
If none of the above files exists, an `ENOENT` error will be thrown. Here's a demo for Node.js: [demo/nodejs](https://github.com/harttle/liquidjs/tree/master/demo/nodejs).
When LiquidJS is used in browser, say current location is <https://example.com/bar/index.html>, only the first `root` will be used and the file to be fetched is:
- <https://example.com/bar/foo.liquid>
If fetch fails, a 404/500 error or network failures for example, an `ENOENT` error will be thrown.
Here's a demo for browsers: [demo/browser](https://github.com/harttle/liquidjs/tree/master/demo/browser).
When LiquidJS is used in browser, the paths will be resolved based on current location. Here's a demo for browsers: [demo/browser](https://github.com/harttle/liquidjs/tree/master/demo/browser).
## Abstract File System