ci: Update dependency react-router to v7.18.2 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
react-router (source)	7.14.2 → 7.18.2

---

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

• https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78
• https://nvd.nist.gov/vuln/detail/CVE-2026-42342
• https://github.com/advisories/GHSA-8x6r-g9mw-2r78

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

---

React Router: Potential CSRF via PUT/PATCH/DELETE document requests

CVE-2026-53663 / GHSA-84g9-w2xq-vcv6

More information

Details

Certain CSRF checks in React Router v7 Framework Mode were insufficient and run on POST requests, but were bypassed on PUT/PATCH/DELETE requests. This is a low severity vulnerability because modern browser protections (CORS preflight, SameSite cookies) already block the cross-origin attack vectors that this missing CSRF check would otherwise gate.

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

Severity

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

References

• https://github.com/remix-run/react-router/security/advisories/GHSA-84g9-w2xq-vcv6
• https://github.com/advisories/GHSA-84g9-w2xq-vcv6

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

---

React Router: RSCErrorHandler Missing Protocol Validation (XSS)

CVE-2026-53667 / GHSA-h8fp-f39c-q6mh

More information

Details

This is a follow up to GHSA-8646-j5j9-6r62. React Router was alerted of a code path in the (unstable) RSC error handling path in which redirects from untrusted sources could still result in an XSS vector via attacker-supplied redirect targets

[!NOTE]
This only affects your application if you are using the unstable RSC APIs

Severity

• CVSS Score: 6.9 / 10 (Medium)
• Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N

References

• https://github.com/remix-run/react-router/security/advisories/GHSA-h8fp-f39c-q6mh
• https://github.com/remix-run/react-router/pull/15177
• https://github.com/remix-run/react-router/commit/ce596e823f0d7b883a433af1d5a839a8b9fe0242
• https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180
• https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0
• https://github.com/advisories/GHSA-h8fp-f39c-q6mh

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

• https://github.com/remix-run/react-router/security/advisories/GHSA-chx6-hx7r-mcp5
• https://github.com/remix-run/react-router/pull/15186
• https://github.com/remix-run/react-router/commit/09e6020d1950e54f361f7ad00938ecd4dde60929
• https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180
• https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0
• https://github.com/advisories/GHSA-chx6-hx7r-mcp5

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

• https://github.com/remix-run/react-router/security/advisories/GHSA-337j-9hxr-rhxg
• https://github.com/remix-run/react-router/pull/15175
• https://github.com/remix-run/react-router/commit/9d22943fd46c8ae4b08236425fa3549e10e9ad1a
• https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180
• https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0
• https://github.com/advisories/GHSA-337j-9hxr-rhxg

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

• https://github.com/remix-run/react-router/security/advisories/GHSA-wrjc-x8rr-h8h6
• https://github.com/remix-run/react-router/pull/15176
• https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180
• https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0
• http://github.com/remix-run/react-router/pull/15176
• https://github.com/advisories/GHSA-wrjc-x8rr-h8h6

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

---

React Router: RSC Mode CSRF Bypass Allows Action Execution Before 400 Response

GHSA-qwww-vcr4-c8h2

More information

Details

This is a follow up to CVE-2026-22030 to address related CSRF flows in unstable RSC code paths.

[!NOTE]
This only affects your application if you are using the unstable RSC APIs

Severity

• CVSS Score: 7.1 / 10 (High)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

References

• https://github.com/remix-run/react-router/security/advisories/GHSA-qwww-vcr4-c8h2
• https://github.com/remix-run/react-router/commit/7a71c728ad116bd78699a258b2014ce9585729f5
• https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v830
• https://github.com/remix-run/react-router/releases/tag/react-router@8.3.0
• http://github.com/remix-run/react-router/pull/15311
• https://github.com/remix-run/react-router/pull/15353
• https://github.com/remix-run/react-router/commit/8ebd5df9932854547963e3255c8454e62430e05d
• https://github.com/remix-run/react-router/blob/v7/CHANGELOG.md#v7182
• https://github.com/remix-run/react-router/releases/tag/react-router%407.18.2
• https://github.com/advisories/GHSA-qwww-vcr4-c8h2

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

---

Release Notes

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

v7.18.2: v7.18.2

Compare Source

See the changelog for release notes: https://github.com/remix-run/react-router/blob/v7/CHANGELOG.md#v7182

v7.18.1: v7.18.1

Compare Source

See the changelog for release notes: https://github.com/remix-run/react-router/blob/v7/CHANGELOG.md#v7181

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

---

Configuration

📅 Schedule: (in timezone Asia/Tokyo)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.