React Router is a router for React. In versions 7.0.0 through 7.14.1, when using Framework Mode, a combination of steps could potentially allow unauthorized remote code execution (RCE) through external requests. This attack requires the application code to have an existing prototype pollution vulnerability, which can then be leveraged in a 2-step attack where the second step triggers unauthorized RCE on the remote server. This does not impact applications using Declarative Mode (`<BrowserRouter>`) or Data Mode (`createBrowserRouter/<RouterProvider>`). This is patched in version 7.14.2.
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Wed, 03 Jun 2026 15:30:00 +0000
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Wed, 03 Jun 2026 12:45:00 +0000
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Remix-run react-router |
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Remix-run react-router |
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| Description | React Router is a router for React. In versions 7.0.0 through 7.14.1, when using Framework Mode, a combination of steps could potentially allow unauthorized remote code execution (RCE) through external requests. This attack requires the application code to have an existing prototype pollution vulnerability, which can then be leveraged in a 2-step attack where the second step triggers unauthorized RCE on the remote server. This does not impact applications using Declarative Mode (`<BrowserRouter>`) or Data Mode (`createBrowserRouter/<RouterProvider>`). This is patched in version 7.14.2. | |
| Title | React Router's vendored turbo-stream v2 allows arbitrary constructor invocation via TYPE_ERROR deserialization leading to Unauth RCE | |
| Weaknesses | CWE-502 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-06-02T18:18:46.706Z
Updated: 2026-06-03T14:08:30.154Z
Reserved: 2026-04-25T05:04:37.028Z
Link: CVE-2026-42211
Updated: 2026-06-03T14:01:45.125Z
Status : Received
Published: 2026-06-02T20:16:36.537
Modified: 2026-06-02T20:16:36.537
Link: CVE-2026-42211
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