chore(monorepo): update dependency react-router to v7.18.0 [security] by renovate[bot] · Pull Request #1535 · suddenlyGiovanni/suddenlygiovanni.dev

renovate · 2026-01-09T00:46:26Z

ℹ️ Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package	Change	Age	Confidence
react-router (source)	`7.7.0` → `7.18.0`

React Router has XSS Vulnerability

CVE-2025-59057 / GHSA-3cgp-3xvw-98x8

More information

Details

A XSS vulnerability exists in in React Router's meta()/<Meta> APIs in Framework Mode when generating script:ld+json tags which could allow arbitrary JavaScript execution during SSR if untrusted content is used to generate the tag.

[!NOTE]
This does not impact applications using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).

Severity

CVSS Score: 7.6 / 10 (High)
Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

References

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

React Router has unexpected external redirect via untrusted paths

CVE-2025-68470 / GHSA-9jcx-v3wj-wh4m

More information

Details

An attacker-supplied path can be crafted so that when a React Router application navigates to it via navigate(), <Link>, or redirect(), the app performs a navigation/redirect to an external URL. This is only an issue if developers pass untrusted content into navigation paths in their application code.

Severity

CVSS Score: 6.5 / 10 (Medium)
Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References

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

React Router SSR XSS in ScrollRestoration

CVE-2026-21884 / GHSA-8v8x-cx79-35w7

More information

Details

A XSS vulnerability exists in in React Router's <ScrollRestoration> API in Framework Mode when using the getKey/storageKey props during Server-Side Rendering which could allow arbitrary JavaScript execution during SSR if untrusted content is used to generate the keys.

[!NOTE]
This does not impact applications if developers have disabled server-side rendering in Framework Mode, or if they are using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).

Severity

CVSS Score: 8.2 / 10 (High)
Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

References

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

React Router vulnerable to XSS via Open Redirects

CVE-2026-22029 / GHSA-2w69-qvjg-hvjx

More information

Details

React Router (and Remix v1/v2) SPA open navigation redirects originating from loaders or actions in Framework Mode, Data Mode, or the unstable RSC modes can result in unsafe URLs causing unintended javascript execution on the client. This is only an issue if developers are creating redirect paths from untrusted content or via an open redirect.

[!NOTE]
This does not impact applications that use Declarative Mode (<BrowserRouter>).

Severity

CVSS Score: 8.0 / 10 (High)
Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

References

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

React Router has CSRF issue in Action/Server Action Request Processing

CVE-2026-22030 / GHSA-h5cw-625j-3rxh

More information

Details

React Router (or Remix v2) is vulnerable to CSRF attacks on document POST requests to UI routes when using server-side route action handlers in Framework Mode, or when using React Server Actions in the new unstable RSC modes.

[!NOTE]
This does not impact your application if you are using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).

Severity

CVSS Score: 6.5 / 10 (Medium)
Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

References

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

React Router vulnerable to XSS in unstable RSC redirect handling via javascript: redirect targets

CVE-2026-33245 / GHSA-8646-j5j9-6r62

More information

Details

When using React Router v7's unstable RSC APIs, there exists a potential client-side XSS issue in the RSC redirect handling if redirects are coming from untrusted sources

[!NOTE]
This only impacts your application if you are using the unstable RSC APIs in React Router.

Severity

CVSS Score: 8.0 / 10 (High)
Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

References

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

React Router has stored XSS via unescaped Location header in prerendered redirect HTML

CVE-2026-33244 / GHSA-f22v-gfqf-p8f3

More information

Details

When using React Router v7 Framework Mode with Pre-rendering enabled, an improper neutralization of the HTTP Location header value can permit Cross-Site Scripting (XSS) in statically generated HTML files if the redirect location comes from an untrusted source.

[!NOTE]
This does not impact your React Router application if you are using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).

Severity

CVSS Score: 5.4 / 10 (Medium)
Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

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

React Router's vendored turbo-stream v2 allows arbitrary constructor invocation via TYPE_ERROR deserialization leading to Unauth RCE

CVE-2026-42211 / GHSA-49rj-9fvp-4h2h

More information

Details

When using React Router v7 in Framework Mode, there exists a combination of steps that could potentially allow unauthorized RCE through external requests. This first requires the application code to have an existing prototype pollution vulnerability. This can be leveraged into a 2-step attack in which the second step can trigger unauthorized RCE on the remote server.

[!NOTE]
This does not impact your React Router application if you are using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).

Severity

CVSS Score: 8.1 / 10 (High)
Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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

React Router's same-origin redirect with path starting // causes open redirect via protocol-relative URL reinterpretation

CVE-2026-40181 / GHSA-2j2x-hqr9-3h42

More information

Details

Certain URLs passed to the redirect function can trigger an open redirect to an external domain depending on the level of validation done by the application prior to returning the redirect.

[!NOTE]
This does not impact your React Router application if you are using Declarative Mode (<BrowserRouter>)

Severity

CVSS Score: 6.6 / 10 (Medium)
Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U

References

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

React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint

CVE-2026-42342 / GHSA-8x6r-g9mw-2r78

More information

Details

There exists a potential DOS attack vector in React Router Framework Mode applications (as well as Remix v2.10.0 - 2.17.4). Certain requests can be crafted to consume disproportionate resources on the server, resulting in response time degredation and/or service unavailability for end users.

[!NOTE]
This does not impact your React Router application if you are using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).

Severity

CVSS Score: 7.5 / 10 (High)
Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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

React Router vulnerable to Denial of Service via reflected user input in single-fetch

CVE-2026-34077 / GHSA-rxv8-25v2-qmq8

More information

Details

A DoS vulnerability exists in the React Router v7 Framework Mode, as well as Remix v2.9.0+ with Single Fetch enabled. In some scenarios the underlying serialization algorithm can become a bottleneck when encoding specific types of data into server responses. Please upgrade to React Router v7.14.0 or later.

[!NOTE]
This does not impact your React Router application if you are using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).

Severity

CVSS Score: 7.5 / 10 (High)
Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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

React Router: Unauthenticated Denial of Service via Inefficient Route Matching

CVE-2026-55685 / GHSA-chx6-hx7r-mcp5

More information

Details

This is a follow up to GHSA-8x6r-g9mw-2r78 that covers additional reported scenarios in which the manifest endpoint could be accessed via unauthenticated targeted requests that would put heavy load on the server and slow down response times.

[!NOTE]
This only impacts Framework Mode applications. This does not impact your application if you are using Declarative or Data Mode.

Severity

CVSS Score: 8.7 / 10 (High)
Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References

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

React Router: Arbitrary Constructor Injection via deserializeErrors() in React Router SSR Hydration

CVE-2026-53666 / GHSA-337j-9hxr-rhxg

More information

Details

If application code allows attacker supplied input to overwrite certain aspects of errors caught by the SSR process, then it was possible for attacker to trigger unexpected constructor execution on the client which would trigger outbound network traffic. This is only possible with very specific (and unlikely) application layer code.

[!NOTE]
This does not impact your application if you are using Declarative Mode. This only impacts Framework Mode and Data Mode applications doing manual SSR/hydration

Severity

CVSS Score: 6.1 / 10 (Medium)
Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

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

React Router: Open redirect via backslash in and useNavigate (CVE-2025-68470 bypass)

CVE-2026-53669 / GHSA-wrjc-x8rr-h8h6

More information

Details

This is a follow up to CVE-2025-68470. React Router was alerted to certain scenarios in which the fix there was incomplete so there still existed some scenarios where attacker supplied paths passed to navigation mechanisms could result in unexpected external navigations.

Severity

CVSS Score: 5.1 / 10 (Medium)
Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N

References

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

Release Notes

remix-run/react-router (react-router)

`v7.18.0`

Compare Source

Patch Changes

Fix server handler prerender responses when using ssr: false and future.v8_trailingSlashAwareDataRequests: true. Avoids false positive "SPA Mode" detection when serving prerendered paths (#15173)
Use the ServerRouter nonce for nonce-aware SSR components when they don't provide their own value so strict CSP pages can load them. (#15170)
Use turbo-stream to serialize and deserialize Framework Mode hydration errors (#15175)
Precompute route branch matchers to avoid recompiling route path regexes during matching (#15186)
Use the constructed request URL host when validating action request origins. (#15185)
Remove the un-documented custom error serialization logic from Data Mode SSR built-in hydration flows (#15175)
Validate protocols in RSC render redirects (#15177)
Consolidate url normalization logic and better handle mixed slashes (#15176)

`v7.17.0`

Compare Source

Minor Changes

Ship a subset of the official documentation inside the react-router package (#15121)
- Markdown docs are now available in node_modules/react-router/docs, letting AI coding agents and the React Router agent skills read official docs locally
- Excludes auto-generated API docs (api/), community/ content, and tutorials (tutorials/)

`v7.16.0`

Compare Source

Minor Changes

Stabilize future.unstable_trailingSlashAwareDataRequests as future.v8_trailingSlashAwareDataRequests (#15098)

Patch Changes

Disable manifest path when lazy route dicovery is disabled (#15068)
Fix browser URL creation to use the configured history window instead of the global window. (#15066)
- Pass the history/router window through to createBrowserURLImpl so custom window contexts keep the correct URL origin.
Fix useNavigation() return type to preserve discriminated union across navigation states (#15095)
Widen MetaDescriptor script:ld+json type from LdJsonObject to LdJsonObject | LdJsonObject[] to permit multiple JSON-LD schemas in a single <script type="application/ld+json"> tag emitted by <Meta /> (#15082)

`v7.15.1`

Compare Source

Patch Changes

Update router to operate on fetcher Maps in an immutable manner to avoid delayed React renders from potentially reading an updated but not yet committed Map. This could result in brief flickers in some fetcher-driven optimistic UI scenarios. (#15028)
Fix serverLoader() returning stale SSR data when a client navigation aborts pending hydration before the hydration clientLoader resolves (#15022)
Fix RouterProvider onError callback not being called for synchronous initial loader errors in SPA mode (#15039) (#14942)
Memoize useFetchers to return a stable identity and only change if fetchers changed (#15028)
Internal refactor to consolidate mutation request detection through shared utility (#15033)

Unstable Changes

⚠️ Unstable features are not recommended for production use

Add a new unstable_useRouterState() hook that consolidates access to active and pending router states (RFC: #12358) (#15017)

Data/Framework/RSC only — throws when used without a data router

This should allow you to consolidate usages of the following hooks which will likely be deprecated and removed in a future major version

useLocation
useSearchParams
useParams
useMatches
useNavigationType
useNavigation

let { active, pending } = unstable_useRouterState();

// Active is always populated with the current location
active.location; // replaces `useLocation()`
active.searchParams; // replaces `useSearchParams()[0]`
active.params; // replaces `useParams()`
active.matches; // replaces `useMatches()`
active.type; // replaces `useNavigationType()`

// Pending is only populated during a navigation
pending.location; // replaces `useNavigation().location`
pending.searchParams; // equivalent to `new URLSearchParams(useNavigation().search)`
pending.params; // Not directly accessible today
pending.matches; // Not directly accessible today
pending.type; // Not directly accessible today
pending.state; // replaces `useNavigation().state`
pending.formMethod; // replaces useNavigation().formMethod
pending.formAction; // replaces useNavigation().formAction
pending.formEncType; // replaces useNavigation().formEncType
pending.formData; // replaces useNavigation().formData
pending.json; // replaces useNavigation().json
pending.text; // replaces useNavigation().text

`v7.15.0`

Compare Source

Minor Changes

Stabilize unstable_defaultShouldRevalidate as defaultShouldRevalidate on <Link>, <Form>, useLinkClickHandler, useSubmit, fetcher.submit, and setSearchParams (a993f09)
- ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
Stabilize the instrumentation APIs. unstable_instrumentations is now instrumentations and unstable_pattern is now pattern (a993f09)
- The unstable_ServerInstrumentation, unstable_ClientInstrumentation, unstable_InstrumentRequestHandlerFunction, unstable_InstrumentRouterFunction, unstable_InstrumentRouteFunction, and unstable_InstrumentationHandlerResult types have had their unstable_ prefixes removed
- ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
Stabilize unstable_mask as mask on <Link>, useLinkClickHandler, and useNavigate, and rename the corresponding Location.unstable_mask field to Location.mask (a993f09)
- ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
Stabilize the unstable_normalizePath option on staticHandler.query and staticHandler.queryRoute as normalizePath (a993f09)
- ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
Stabilize future.unstable_passThroughRequests as future.v8_passThroughRequests (a993f09)
- ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
Remove unstable_subResourceIntegrity from the runtime FutureConfig type; the flag is now controlled by the top-level subResourceIntegrity option in react-router.config.ts (a993f09)
- ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
Stabilize unstable_url as url on loader, action, and middleware function args (a993f09)
- ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly
Stabilize unstable_useTransitions as useTransitions on <BrowserRouter>, <HashRouter>, <HistoryRouter>, <MemoryRouter>, <Router>, <RouterProvider>, <HydratedRouter>, and useLinkClickHandler (a993f09)
- ⚠️ This is a breaking change if you have already opted into the unstable version - you will need to update your code accordingly

Patch Changes

Add nonce to <Scripts> <link rel="modulepreload"> elements (if provided) (af5d49b)
Fix a bug with unstable_defaultShouldRevalidate={false} where parent routes that did not export a shouldRevalidate function could be incorrectly included in the single fetch call for new child route data (#15012)
Improve server-side route matching performance by pre-computing flattened/cached route branches (#14967) (af5d49b)
- Performance benchmarks showed roughly a 10-15% improvement in server-side request handling performance
Mark mask as an optional field in Location for easier mocking in unit tests (#14999)
Cache flattened/ranked route branches to optimize server-side route matching (#14967)
Improve route matching performance in Framework/Data Mode (#14971) (af5d49b)
- Avoiding unnecessary calls to matchRoutes in data router scenarios
  - This includes adding back the optimization that was removed in 7.6.0 (#13562)
  - The issues that prompted the revert have been addressed by using the available router matches but always updating match.route to the latest route in the manifest
- Leverage pre-computed pre-computing flattened/cached route branches during client side route matching
- Performance benchmarks showed roughly a 15-30% improvement in server-side request handling performance

`v7.14.2`

Compare Source

Patch Changes

Remove the un-documented custom error serialization logic from the internal turbo-stream implementation. React Router only automatically handles serialization of Error and it's standard subtypes (SyntaxError, TypeError, etc.). ([aabf4a1)
Properly handle parent middleware redirects during fetcher.load ([aabf4a1)
Remove redundant Omit<RouterProviderProps, "flushSync"> from react-router/dom RouterProvider ([aabf4a1)

Improved types for generatePath's param arg ([aabf4a1)

Type errors when required params are omitted:

// Before
// Passes type checks, but throws at runtime 💥
generatePath(":required", { required: null });

// After
generatePath(":required", { required: null });
//                          ^^^^^^^^ Type 'null' is not assignable to type 'string'.ts(2322)

Allow omission of optional params:

// Before
generatePath(":optional?", {});
//                         ^^ Property 'optional' is missing in type '{}' but required in type '{ optional: string | null | undefined; }'.ts(2741)

// After
generatePath(":optional?", {});

Allows extra keys:

// Before
generatePath(":a", { a: "1", b: "2" });
//                           ^ Object literal may only specify known properties, and 'b' does not exist in type '{ a: string; }'.ts(2353)

// After
generatePath(":a", { a: "1", b: "2" });

`v7.14.1`

Compare Source

Patch Changes

Fix a potential race condition that can occur when rendering a HydrateFallback and initial loaders land before the router.subscribe call happens in the RouterProvider layout effect
Normalize double-slashes in redirect paths

`v7.14.0`

Compare Source

Patch Changes

UNSTABLE RSC FRAMEWORK MODE BREAKING CHANGE - Existing route module exports remain unchanged from stable v7 non-RSC mode, but new exports are added for RSC mode. If you want to use RSC features, you will need to update your route modules to export the new annotations. (#14901)

If you are using RSC framework mode currently, you will need to update your route modules to the new conventions. The following route module components have their own mutually exclusive server component counterparts:

Server Component Export Client Component

ServerComponent default

ServerErrorBoundary ErrorBoundary

ServerLayout Layout

ServerHydrateFallback HydrateFallback

If you were previously exporting a ServerComponent, your ErrorBoundary, Layout, and HydrateFallback were also server components. If you want to keep those as server components, you can rename them and prefix them with Server. If you were previously importing the implementations of those components from a client module, you can simply inline them.

Example:

Before
```
import { ErrorBoundary as ClientErrorBoundary } from "./client";

export function ServerComponent() {
  // ...
}

export function ErrorBoundary() {
  return <ClientErrorBoundary />;
}

export function Layout() {
  // ...
}

export function HydrateFallback() {
  // ...
}
```
After
```
export function ServerComponent() {
  // ...
}

export function ErrorBoundary() {
  // previous implementation of ClientErrorBoundary, this is now a client component
}

export function ServerLayout() {
  // rename previous Layout export to ServerLayout to make it a server component
}

export function ServerHydrateFallback() {
  // rename previous HydrateFallback export to ServerHydrateFallback to make it a server component
}
```
rsc Link prefetch (#14902)
Remove recursion from turbo-stream v2 allowing for encoding / decoding of massive payloads. (#14838)
encodeViaTurboStream leaked memory via unremoved AbortSignal listener (#14900)

`v7.13.2`

Compare Source

Patch Changes

Fix clientLoader.hydrate when an ancestor route is also hydrating a clientLoader (#14835)
Fix type error when passing Framework Mode route components using Route.ComponentProps to createRoutesStub (#14892)
Fix percent encoding in relative path navigation (#14786)

Add future.unstable_passThroughRequests flag (#14775)

By default, React Router normalizes the request.url passed to your loader, action, and middleware functions by removing React Router's internal implementation details (.data suffixes, index + _routes query params).

Enabling this flag removes that normalization and passes the raw HTTP request instance to your handlers. This provides a few benefits:

Reduces server-side overhead by eliminating multiple new Request() calls on the critical path
Allows you to distinguish document from data requests in your handlers base don the presence of a .data suffix (useful for observability purposes)

If you were previously relying on the normalization of request.url, you can switch to use the new sibling unstable_url parameter which contains a URL instance representing the normalized location:

// ❌ Before: you could assume there was no `.data` suffix in `request.url`
export async function loader({ request }: Route.LoaderArgs) {
  let url = new URL(request.url);
  if (url.pathname === "/path") {
    // This check will fail with the flag enabled because the `.data` suffix will
    // exist on data requests
  }
}

// ✅ After: use `unstable_url` for normalized routing logic and `request.url`
// for raw routing logic
export async function loader({ request, unstable_url }: Route.LoaderArgs) {
  if (unstable_url.pathname === "/path") {
    // This will always have the `.data` suffix stripped
  }

  // And now you can distinguish between document versus data requests
  let isDataRequest = new URL(request.url).pathname.endsWith(".data");
}

Internal refactor to consolidate framework-agnostic/React-specific route type layers - no public API changes (#14765)
Sync protocol validation to rsc flows (#14882)
Add a new unstable_url: URL parameter to route handler methods (loader, action, middleware, etc.) representing the normalized URL the application is navigating to or fetching, with React Router implementation details removed (.datasuffix, index/_routes query params) (#14775)

This is being added alongside the new future.unstable_passthroughRequests future flag so that users still have a way to access the normalized URL when that flag is enabled and non-normalized request's are being passed to your handlers. When adopting this flag, you will only need to start leveraging this new parameter if you are relying on the normalization of request.url in your application code.

If you don't have the flag enabled, then unstable_url will match request.url.

`v7.13.1`

Compare Source

Patch Changes

fix null reference exception in bad codepath leading to invalid route tree comparisons (#14780)
fix: clear timeout when turbo-stream encoding completes (#14810)
Improve error message when Origin header is invalid (#14743)
Fix matchPath optional params matching without a "/" separator. (#14689)
- matchPath("/users/:id?", "/usersblah") now returns null.
- matchPath("/test_route/:part?", "/test_route_more") now returns null.
add RSC unstable_getRequest (#14758)
Fix HydrateFallback rendering during initial lazy route discovery with matching splat route (#14740)

[UNSTABLE] Add support for <Link unstable_mask> in Data Mode which allows users to navigate to a URL in the router but "mask" the URL displayed in the browser. This is useful for contextual routing usages such as displaying an image in a model on top of a gallery, but displaying a browser URL directly to the image that can be shared and loaded without the contextual gallery in the background. (#14716)

// routes/gallery.tsx
export function clientLoader({ request }: Route.LoaderArgs) {
  let sp = new URL(request.url).searchParams;
  return {
    images: getImages(),
    // When the router location has the image param, load the modal data
    modalImage: sp.has("image") ? getImage(sp.get("image")!) : null,
  };
}

export default function Gallery({ loaderData }: Route.ComponentProps) {
  return (
    <>
      <GalleryGrid>
        {loaderData.images.map((image) => (
          <Link
            key={image.id}
            {/* Navigate the router to /galley?image=N */}}
            to={`/gallery?image=${image.id}`}
            {/* But display /images/N in the URL bar */}}
            unstable_mask={`/images/${image.id}`}
          >
            <img src={image.url} alt={image.alt} />
          </Link>
        ))}
      </GalleryGrid>

      {/* When the modal data exists, display the modal */}
      {data.modalImage ? (
        <dialog open>
          <img src={data.modalImage.url} alt={data.modalImage.alt} />
        </dialog>
      ) : null}
    </>
  );
}

Notes:

The masked location, if present, will be available on useLocation().unstable_mask so you can detect whether you are currently masked or not.
Masked URLs only work for SPA use cases, and will be removed from history.state during SSR.
This provides a first-class API to mask URLs in Data Mode to achieve the same behavior you could do in Declarative Mode via manual backgroundLocation management.

RSC: Update failed origin checks to return a 400 status and appropriate UI instead of a generic 500 (#14755)
Preserve query parameters and hash on manifest version mismatch reload (#14813)

`v7.13.0`

Compare Source

Minor Changes

Add crossOrigin prop to Links component (#14687)

Patch Changes

Fix double slash normalization for useNavigate colon urls (#14718)
Update failed origin checks to return a 400 status instead of a 500 (#14737)
Bugfix #14666: Inline criticalCss is missing nonce (#14691)
Loosen allowedActionOrigins glob check so ** matches all domains (#14722)

`v7.12.0`

Compare Source

Minor Changes

Add additional layer of CSRF protection by rejecting submissions to UI routes from external origins. If you need to permit access to specific external origins, you can specify them in the react-router.config.ts config allowedActionOrigins field. (#14708)

Patch Changes

Fix generatePath when used with suffixed params (i.e., "/books/:id.json") (#14269)
Export UNSAFE_createMemoryHistory and UNSAFE_createHashHistory alongside UNSAFE_createBrowserHistory for consistency. These are not intended to be used for new apps but intended to help apps usiong unstable_HistoryRouter migrate from v6->v7 so they can adopt the newer APIs. (#14663)
Escape HTML in scroll restoration keys (#14705)
Validate redirect locations (#14706)
[UNSTABLE] Pass <Scripts nonce> value through to the underlying importmap script tag when using future.unstable_subResourceIntegrity (#14675)
[UNSTABLE] Add a new future.unstable_trailingSlashAwareDataRequests flag to provide consistent behavior of request.pathname inside middleware, loader, and action functions on document and data requests when a trailing slash is present in the browser URL. (#14644)

Currently, your HTTP and request pathnames would be as follows for /a/b/c and /a/b/c/

URL /a/b/c HTTP pathname request pathname`

Document /a/b/c /a/b/c ✅

Data /a/b/c.data /a/b/c ✅

URL /a/b/c/ HTTP pathname request pathname`

Document /a/b/c/ /a/b/c/ ✅

Data /a/b/c.data /a/b/c ⚠️

With this flag enabled, these pathnames will be made consistent though a new _.data format for client-side .data requests:

URL /a/b/c HTTP pathname request pathname`

Document /a/b/c /a/b/c ✅

Data /a/b/c.data /a/b/c ✅

URL /a/b/c/ HTTP pathname request pathname`

Document /a/b/c/ /a/b/c/ ✅

Data /a/b/c/_.data ⬅️ /a/b/c/ ✅

This a bug fix but we are putting it behind an opt-in flag because it has the potential to be a "breaking bug fix" if you are relying on the URL format for any other application or caching logic.

Enabling this flag also changes the format of client side .data requests from /_root.data to /_.data when navigating to / to align with the new format. This does not impact the request pathname which is still / in all cases.
Preserve clientLoader.hydrate=true when using <HydratedRouter unstable_instrumentations> (#14674)

`v7.11.0`

Compare Source

Minor Changes

Stabilize <HydratedRouter onError>/<RouterProvider onError> (#14546)

Patch Changes

add support for throwing redirect Response's at RSC render time (#14596)
Support for throwing data() and Response from server component render phase. Response body is not serialized as async work is not allowed as error encoding phase. If you wish to transmit data to the boundary, throw data() instead. (#14632)
Fix unstable_useTransitions prop on <Router> component to permit omission for backewards compatibility (#14646)
routeRSCServerRequest replace fetchServer with serverResponse (#14597)
[UNSTABLE] Add a new unstable_defaultShouldRevalidate flag to various APIs to allow opt-ing out of standard revalidation behaviors. (#14542)

If active routes include a shouldRevalidate function, then your value will be passed as defaultShouldRevalidate in those function so that the route always has the final revalidation determination.
- <Form method="post" unstable_defaultShouldRevalidate={false}>
- submit(data, { method: "post", unstable_defaultShouldRevalidate: false })
- <fetcher.Form method="post" unstable_defaultShouldRevalidate={false}>
- fetcher.submit(data, { method: "post", unstable_defaultShouldRevalidate: false })
This is also available on non-submission APIs that may trigger revalidations due to changing search params:
- <Link to="/" unstable_defaultShouldRevalidate={false}>
- `navigate("/?foo=

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Line 6894 in acb5b3a

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github-actions · 2026-08-26T13:40:48Z

[misspell] _{reported by reviewdog 🐶}
"optimise" is a misspelling of "optimize"

suddenlygiovanni.dev/pnpm-lock.yaml

Line 6907 in acb5b3a

'@babel/helper-optimise-call-expression': 7.27.1

github-actions · 2026-08-26T13:40:49Z

[misspell] _{reported by reviewdog 🐶}
"optimise" is a misspelling of "optimize"

suddenlygiovanni.dev/pnpm-lock.yaml

Line 6920 in acb5b3a

'@babel/helper-optimise-call-expression': 7.27.1

github-actions · 2026-08-26T13:40:50Z

[misspell] _{reported by reviewdog 🐶}
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suddenlygiovanni.dev/pnpm-lock.yaml

Line 6987 in acb5b3a

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github-actions · 2026-08-26T13:40:52Z

[misspell] _{reported by reviewdog 🐶}
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suddenlygiovanni.dev/pnpm-lock.yaml

Line 6997 in acb5b3a

'@babel/helper-optimise-call-expression': 7.27.1

github-actions · 2026-08-26T13:40:53Z

[misspell] _{reported by reviewdog 🐶}
"optimise" is a misspelling of "optimize"

suddenlygiovanni.dev/pnpm-lock.yaml

Line 7006 in acb5b3a

'@babel/helper-optimise-call-expression': 7.27.1

github-actions · 2026-08-26T13:40:54Z

[misspell] _{reported by reviewdog 🐶}
"optimise" is a misspelling of "optimize"

suddenlygiovanni.dev/pnpm-lock.yaml

Line 7015 in acb5b3a

'@babel/helper-optimise-call-expression': 7.27.1

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renovate Bot added the dependencies Pull requests that update a dependency file label Jan 9, 2026

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renovate Bot force-pushed the renovate/npm-react-router-vulnerability branch from f33f154 to d55e704 Compare January 19, 2026 19:12

renovate Bot changed the title ~~chore(monorepo): update dependency react-router to v7.12.0 [security]~~ chore(monorepo): update dependency react-router to v7.12.0 [security] - autoclosed Jan 23, 2026

renovate Bot closed this Jan 23, 2026

renovate Bot deleted the renovate/npm-react-router-vulnerability branch January 23, 2026 14:30

renovate Bot changed the title ~~chore(monorepo): update dependency react-router to v7.12.0 [security] - autoclosed~~ chore(monorepo): update dependency react-router to v7.12.0 [security] Jan 23, 2026

renovate Bot reopened this Jan 23, 2026

renovate Bot force-pushed the renovate/npm-react-router-vulnerability branch from d55e704 to 600a6fc Compare January 23, 2026 19:30

renovate Bot force-pushed the renovate/npm-react-router-vulnerability branch from 600a6fc to 2a172f0 Compare February 12, 2026 15:42

renovate Bot force-pushed the renovate/npm-react-router-vulnerability branch from e8ffeab to 8ba4e58 Compare August 12, 2026 03:57

chore(monorepo): update dependency react-router to v7.18.0 [security]

acb5b3a

renovate Bot force-pushed the renovate/npm-react-router-vulnerability branch from 8ba4e58 to acb5b3a Compare August 26, 2026 13:10

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Server Component Export	Client Component
`ServerComponent`	`default`
`ServerErrorBoundary`	`ErrorBoundary`
`ServerLayout`	`Layout`
`ServerHydrateFallback`	`HydrateFallback`

URL `/a/b/c`	HTTP pathname	`request` pathname`
Document	`/a/b/c`	`/a/b/c` ✅
Data	`/a/b/c.data`	`/a/b/c` ✅

URL `/a/b/c/`	HTTP pathname	`request` pathname`
Document	`/a/b/c/`	`/a/b/c/` ✅
Data	`/a/b/c.data`	`/a/b/c` ⚠️

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renovate Bot commented Jan 9, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

React Router has XSS Vulnerability

Details

Severity

References

React Router has unexpected external redirect via untrusted paths

Details

Severity

References

React Router SSR XSS in ScrollRestoration

Details

Severity

References

React Router vulnerable to XSS via Open Redirects

Details

Severity

References

React Router has CSRF issue in Action/Server Action Request Processing

Details

Severity

References

React Router vulnerable to XSS in unstable RSC redirect handling via javascript: redirect targets

Details

Severity

References

React Router has stored XSS via unescaped Location header in prerendered redirect HTML

Details

Severity

References

React Router's vendored turbo-stream v2 allows arbitrary constructor invocation via TYPE_ERROR deserialization leading to Unauth RCE

Details

Severity

References

React Router's same-origin redirect with path starting // causes open redirect via protocol-relative URL reinterpretation

Details

Severity

References

React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint

Details

Severity

References

React Router vulnerable to Denial of Service via reflected user input in single-fetch

Details

Severity

References

React Router: Unauthenticated Denial of Service via Inefficient Route Matching

Details

Severity

References

React Router: Arbitrary Constructor Injection via deserializeErrors() in React Router SSR Hydration

Details

Severity

References

React Router: Open redirect via backslash in and useNavigate (CVE-2025-68470 bypass)

Details

Severity

References

Release Notes

Patch Changes

Minor Changes

Minor Changes

Patch Changes

Patch Changes

Unstable Changes

Minor Changes

Patch Changes

Patch Changes

Patch Changes

Patch Changes

Patch Changes

Patch Changes

Minor Changes

Patch Changes

Minor Changes

Patch Changes

Minor Changes

Patch Changes

Configuration

renovate Bot commented Jan 9, 2026 •

edited

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socket-security Bot commented Jan 19, 2026 •

edited

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