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chore(deps): update dependency vitest to v5 [security] - #7220

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@renovate renovate Bot commented Sep 10, 2026 •

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This PR body was truncated due to platform limits.

This PR contains the following updates:

Package Change Age Confidence
vitest (source) ^3.0.0 → ^5.0.0 age confidence
vitest (source) ^3.2.3 → ^5.0.0 age confidence

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.


Vitest: Path Traversal / Arbitrary File Read via @​vitest/mocker Redirect Mock

CVE-2026-84373 / GHSA-82fw-gwwq-j7x9

More information

Details

Summary

@vitest/mocker registers a redirect mock's target path without validating it
against the dev server's file-serving allowlist. An attacker who can reach the
dev server's WebSocket can register a redirect mock pointing outside the project
root; when the mocked module is requested, the plugin's load hook returns
readFile(<attacker path>) as the module source, disclosing local files.

This is exploitable without authentication only through the public
mockerPlugin / standalone interceptorPlugin exports (used by third-party dev
servers), which register the handler on Vite's unauthenticated HMR socket.
Vitest's own browser mode registers mocks over a token-authenticated RPC and
is not remotely reachable by default (see Scope).

Affected code

packages/mocker/src/node/interceptorPlugin.ts.

The load hook is the file-read sink:

if (mock.type === 'redirect') {
  return readFile(mock.redirect, 'utf-8')
}

mock.redirect is derived from client input at registration time with no
boundary check:

if (event.type === 'redirect') {
  const redirectUrl = new URL(event.redirect)
  event.redirect = join(server.config.root, redirectUrl.pathname)
}
registry.register(event)

There is no server.fs.allow / server.fs.deny check and no assertion that the
resolved path stays within the project root.

Registration paths and trust boundaries
  • Public mockerPlugin / interceptorPlugin (unauthenticated). In
    configureServer, the plugin registers server.ws.on('vitest:interceptor:register', …)
    on Vite's HMR WebSocket. That socket performs no token, Origin, or same-origin
    check, so any client that can reach it can register a redirect mock. This is
    the path the "unauthenticated" impact applies to.
  • Vitest browser mode (authenticated). Mocks register over the browser RPC
    (registerMock), which sits behind a per-run token (isValidApiRequest, a
    random api.token). The interceptor's configureServer socket is not used for
    registration here (in v5 it does not run at all, as the plugin is injected per
    environment). The same missing boundary check exists on the authenticated RPC
    path, but reaching it requires the token, so it is not a remote-unauthenticated
    read.
Path handling

new URL(redirect).pathname combined with join(root, pathname) does not
confine reads to the root:

  • Special/hierarchical schemes (file:, http:) are normalized by WHATWG URL,
    so .. segments are collapsed and the result stays under the root. Payloads of
    the form file:///../../etc/passwd do not escape.
  • A non-special (opaque) scheme preserves .. in pathname, so
    join(root, "../../…/etc/passwd") resolves outside the root and reads an
    arbitrary file.

Even without escaping the root, the missing server.fs check allows reading any
in-root file the dev server would otherwise refuse to serve (for example an
in-root .env or source that is denied by server.fs.deny).

Scope / preconditions
  • This is a development-server issue. The dev server binds to localhost by
    default and is not reachable from the network unless the developer exposes it
    (server.host / 0.0.0.0, a LAN bind, or a proxy).
  • A raw (non-browser) client against a reachable server bypasses browser origin
    and CORS protections entirely and can both register the mock and read the
    response.
  • A browser-based drive-by against a localhost server is substantially mitigated
    by Vite defaults: the default CORS origin allowlist is limited to localhost
    origins, and server.allowedHosts blocks DNS-rebinding, so a cross-origin page
    cannot read the file contents back.
Impact

Disclosure of local files readable by the dev-server process (source, in-root
.env/secrets, and, via the opaque-scheme payload, files outside the project
root). No integrity or availability impact.

Affected versions

Present since @vitest/mocker was introduced.

  • Affected: @vitest/mocker >= 2.1.0 (shipped in vitest and
    @vitest/browser >= 2.1.0), through 4.1.x and the 5.0.0 pre-releases.
  • Fixed: Vitest 4.1.11 and 5.0.0. Older majors (2.1.x, 3.x) are not
    maintained and are not planned to receive the fix.
Fix

Validate the resolved redirect target against Vite's file-serving allowlist
(isFileLoadingAllowed) before registering it, at every registration site, and
stop registering the interceptor WebSocket events in Vitest's browser mode
(mocks there flow through the authenticated RPC).

Severity

  • CVSS Score: 5.9 / 10 (Medium)
  • Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


Release Notes

vitest-dev/vitest (vitest)

v5.1.0

Compare Source

   🚀 Features
   🐞 Bug Fixes
   🏎 Performance
    View changes on GitHub

v5.0.5

Compare Source

   🐞 Bug Fixes
    View changes on GitHub

v5.0.4

Compare Source

   🚀 Features
   🐞 Bug Fixes

[!IMPORTANT]
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@renovate
renovate Bot requested a review from a team as a code owner September 10, 2026 00:38
@renovate renovate Bot added dependencies Pull requests that update a dependency file javascript labels Sep 10, 2026
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⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

  • any of the package files in this branch needs updating, or
  • the branch becomes conflicted, or
  • you click the rebase/retry checkbox if found above, or
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The artifact failure details are included below:

File name: package-lock.json
npm warn Unknown env config "store". This will error in a future major version of npm. See `npm help npmrc` for supported config options.
npm error code ERESOLVE
npm error ERESOLVE could not resolve
npm error
npm error While resolving: vitest@5.1.0
npm error Found: @vitest/ui@3.2.6
npm error node_modules/@vitest/ui
npm error   dev @vitest/ui@"^3.0.0" from @netlify/build-info@11.3.1
npm error   packages/build-info
npm error     @netlify/build-info@11.3.1
npm error     node_modules/@netlify/build-info
npm error       workspace packages/build-info from the root project
npm error   dev @vitest/ui@"^3.0.0" from @netlify/opentelemetry-sdk-setup@4.0.1
npm error   packages/opentelemetry-sdk-setup
npm error     @netlify/opentelemetry-sdk-setup@4.0.1
npm error     node_modules/@netlify/opentelemetry-sdk-setup
npm error       workspace packages/opentelemetry-sdk-setup from the root project
npm error       1 more (@netlify/build)
npm error   1 more (@netlify/opentelemetry-utils)
npm error
npm error Could not resolve dependency:
npm error peerOptional @vitest/ui@"5.1.0" from vitest@5.1.0
npm error packages/build-info/node_modules/vitest
npm error   dev vitest@"^5.0.0" from @netlify/build-info@11.3.1
npm error   packages/build-info
npm error     @netlify/build-info@11.3.1
npm error     node_modules/@netlify/build-info
npm error       workspace packages/build-info from the root project
npm error   peer vitest@"5.1.0" from @vitest/coverage-v8@5.1.0
npm error   packages/build-info/node_modules/@vitest/coverage-v8
npm error     peerOptional @vitest/coverage-v8@"5.1.0" from vitest@5.1.0
npm error
npm error Conflicting peer dependency: @vitest/ui@5.1.0
npm error node_modules/@vitest/ui
npm error   peerOptional @vitest/ui@"5.1.0" from vitest@5.1.0
npm error   packages/build-info/node_modules/vitest
npm error     dev vitest@"^5.0.0" from @netlify/build-info@11.3.1
npm error     packages/build-info
npm error       @netlify/build-info@11.3.1
npm error       node_modules/@netlify/build-info
npm error         workspace packages/build-info from the root project
npm error     peer vitest@"5.1.0" from @vitest/coverage-v8@5.1.0
npm error     packages/build-info/node_modules/@vitest/coverage-v8
npm error       peerOptional @vitest/coverage-v8@"5.1.0" from vitest@5.1.0
npm error
npm error Fix the upstream dependency conflict, or retry this command with --force or --legacy-peer-deps to accept an incorrect (and potentially broken) dependency resolution.
npm error
npm error
npm error For a full report see:
npm error /runner/cache/others/npm/_logs/2026-11-11T21_42_03_338Z-eresolve-report.txt
npm error A complete log of this run can be found in: /runner/cache/others/npm/_logs/2026-11-11T21_42_03_338Z-debug-0.log

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e18e dependency analysis

No dependency warnings found.

@renovate
renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from d41cab4 to e22fc5b Compare September 11, 2026 00:31
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 11, 2026
@renovate
renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from e22fc5b to 35a1449 Compare September 11, 2026 11:28
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 11, 2026
@renovate
renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 35a1449 to 32bb058 Compare September 14, 2026 17:06
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 14, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 32bb058 to 9d0cd20 Compare September 15, 2026 00:07
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 15, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 9d0cd20 to 6a8ca72 Compare September 15, 2026 11:35
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 15, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 6a8ca72 to 01c6299 Compare September 15, 2026 15:50
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 15, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 01c6299 to 1aaaf04 Compare September 15, 2026 17:05
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 15, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 1aaaf04 to e254b41 Compare September 16, 2026 01:42
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 16, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from e254b41 to 205a5a5 Compare September 16, 2026 20:42
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 16, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 205a5a5 to 0f39037 Compare September 17, 2026 04:49
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 17, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 0f39037 to 4d22319 Compare September 17, 2026 22:12
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 17, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 4d22319 to 64d0e6f Compare September 18, 2026 03:25
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 18, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from fcb7685 to 3b9d119 Compare September 25, 2026 07:00
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 25, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 3b9d119 to 93f7892 Compare September 25, 2026 10:07
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 25, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 93f7892 to 11d25ed Compare September 25, 2026 10:27
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 25, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 11d25ed to 0735ae5 Compare September 25, 2026 10:47
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 25, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 0735ae5 to 8c18775 Compare September 25, 2026 10:49
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 25, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 8c18775 to deb0fe4 Compare September 25, 2026 10:58
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 25, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from deb0fe4 to 8a3198b Compare September 25, 2026 11:25
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 25, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 8a3198b to 6f6b03c Compare September 25, 2026 14:33
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 25, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 6f6b03c to a2a041b Compare September 25, 2026 14:35
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 25, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from a2a041b to 1fd9651 Compare September 28, 2026 07:39
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 28, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 1fd9651 to 82cd0fb Compare September 28, 2026 07:41
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 28, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 82cd0fb to 9bc5a5b Compare September 28, 2026 09:26
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 28, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch from 9bc5a5b to 4623ab0 Compare September 28, 2026 09:33
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v5 [security] chore(deps): update dependency vitest to v4 [security] Sep 28, 2026
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renovate Bot force-pushed the renovate/npm-vitest-vulnerability branch 2 times, most recently from 2c07755 to 9a9845a Compare September 28, 2026 10:39
@renovate renovate Bot changed the title chore(deps): update dependency vitest to v4 [security] chore(deps): update dependency vitest to v5 [security] Sep 28, 2026
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