CVE-2026-53663
React Router: `handleDocumentRequest` CSRF check covers `POST` only; PUT/PATCH/DELETE bypass
React Router is a router for React. From 7.12.0 until 7.15.1, 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. This vulnerability is fixed in 7.15.1.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
React Router: `handleDocumentRequest` CSRF check covers `POST` only; PUT/PATCH/DELETE bypass
React Router is a router for React. From 7.12.0 until 7.15.1, 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. This vulnerability is fixed in 7.15.1.
- Record
CVE-2026-53663- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N - Weakness
- CWE-352
- Updated
- 2026-11-02
EUVDEUVD-2026-38338
React Router is a router for React. From 7.12.0 until 7.15.1, 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. This vulnerability is fixed in 7.15.1.
- Record
EUVD-2026-38338- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-84g9-w2xq-vcv6
React Router: Potential CSRF via PUT/PATCH/DELETE document requests
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>).
- Record
GHSA-84g9-w2xq-vcv6- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N - Weakness
- CWE-352
- Updated
- 2026-11-02
NVD
React Router is a router for React. From 7.12.0 until 7.15.1, 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. This vulnerability is fixed in 7.15.1.
- Record
CVE-2026-53663- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N - Weakness
- CWE-352
- Updated
- 2026-11-02
OSV
React Router: `handleDocumentRequest` CSRF check covers `POST` only; PUT/PATCH/DELETE bypass
React Router is a router for React. From 7.12.0 until 7.15.1, 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. This vulnerability is fixed in 7.15.1.
- Record
CVE-2026-53663- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N - Weakness
- CWE-352
- Updated
- 2026-11-02
OSVGHSA-84g9-w2xq-vcv6
React Router: Potential CSRF via PUT/PATCH/DELETE document requests
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>).
- Record
GHSA-84g9-w2xq-vcv6- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N - Weakness
- CWE-352
- Updated
- 2026-11-02
Show 8 moreShow less
OSVCLSA-2026-1791465168 No score
TuxCare security update for react-router (4 CVEs)
TuxCare rebuilt react-router to address 4 CVEs. Fixed in 7.15.0-tuxcare.1.
- Record
CLSA-2026-1791465168- Updated
- 2026-11-02
OSVCLSA-2026-1792191744 No score
TuxCare security update for react-router (4 CVEs)
TuxCare rebuilt react-router to address 4 CVEs. Fixed in 7.14.2-tuxcare.1.
- Record
CLSA-2026-1792191744- Updated
- 2026-11-02
OSVCLSA-2026-1792253402 No score
TuxCare security update for react-router-dom (4 CVEs)
TuxCare rebuilt react-router-dom to address 4 CVEs. Fixed in 7.15.0-tuxcare.1.
- Record
CLSA-2026-1792253402- Updated
- 2026-11-02
OSVCLSA-2026-1792253416 No score
TuxCare security update for react-router-dom (4 CVEs)
TuxCare rebuilt react-router-dom to address 4 CVEs. Fixed in 7.14.2-tuxcare.1.
- Record
CLSA-2026-1792253416- Updated
- 2026-11-02
OSVCLSA-2026-1793102180 No score
TuxCare security update for react-router (5 CVEs)
TuxCare rebuilt react-router to address 5 CVEs. Fixed in 7.13.1-tuxcare.2.
- Record
CLSA-2026-1793102180- Updated
- 2026-11-06
OSVCLSA-2026-1793120008 No score
TuxCare security update for react-router (1 CVE)
TuxCare rebuilt react-router to address 1 CVE. Fixed in 7.14.1-tuxcare.3.
- Record
CLSA-2026-1793120008- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:11325-1 No score
agama-web-ui-23+0.f26ed5eab-49.1 on GA media
These are all security issues fixed in the agama-web-ui-23+0.f26ed5eab-49.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:11325-1- Updated
- 2026-11-02
OSVROOT-APP-NPM-CVE-2026-53663 No score
CVE-2026-53663 in react-router - Patched by Root
Root has patched CVE-2026-53663 in the react-router package for Root:npm. Multiple fixed versions available.
- Record
ROOT-APP-NPM-CVE-2026-53663- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
react-routernpm |
7.12.0 up to 7.15.1 | 7.15.1 |
@remix-run/server-runtimenpm |
2.17.3 up to 2.17.5 | 2.17.5 |
react-routerTuxCare:npm From an advisory covering 4 CVEs |
7.15.0-tuxcare.0 up to 7.15.0-tuxcare.1, plus listed versions 7.15.0 |
7.15.0-tuxcare.1 |
react-routerTuxCare:npm From an advisory covering 4 CVEs |
7.14.2-tuxcare.0 up to 7.14.2-tuxcare.1, plus listed versions 7.14.2 |
7.14.2-tuxcare.1 |
react-router-domTuxCare:npm From an advisory covering 4 CVEs |
7.15.0-tuxcare.0 up to 7.15.0-tuxcare.1, plus listed versions 7.15.0 |
7.15.0-tuxcare.1 |
react-router-domTuxCare:npm From an advisory covering 4 CVEs |
7.14.2-tuxcare.0 up to 7.14.2-tuxcare.1, plus listed versions 7.14.2 |
7.14.2-tuxcare.1 |
react-routerTuxCare:npm From an advisory covering 5 CVEs |
7.13.1-tuxcare.0 up to 7.13.1-tuxcare.2, plus listed versions 7.13.17.13.1-tuxcare.1 |
7.13.1-tuxcare.2 |
react-routerTuxCare:npm |
7.14.1-tuxcare.0 up to 7.14.1-tuxcare.3, plus listed versions 7.14.17.14.1-tuxcare.17.14.1-tuxcare.2 |
7.14.1-tuxcare.3 |
react-routerRoot:npm |
before 7.15.1-aikido.1 | 7.15.1-aikido.17.15.1-aikido.3 |
@rootio/react-routerRoot:npm |
before 7.15.1-root.io.1 | 7.15.1-root.io.17.15.1-root.io.3 |
agama-web-uiopenSUSE:Tumbleweed |
before 23+0.f26ed5eab-49.1 | 23+0.f26ed5eab-49.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | OSV | |
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-53663 is a low vulnerability (CVSS 3.1) in @remix-run Server-runtime, published June 15, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.15%, the 4th percentile. Fixed in react-router 7.15.1.