CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2026-34077
High (7.5). EPSS 0.3% chance of exploitation in the next 30 days. Fixed in react-router 7.14.0.
React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components (RSC) APIs, there is a potential client-side Cross-Site Scripting (XSS) vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not impact applications that are not using the unstable RSC APIs in React Router. This is patched in version 7.13.2.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
- CWE
- CWE-770
- Published
- Modified
- Record from
- the NVD, synced
Affected
- shopify:react-router
- turbo-stream:turbo_stream
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-rxv8-25v2-qmq8 | npm | react-router | >=7.0.0 <7.14.0 | 7.14.0 |
| GHSA-rxv8-25v2-qmq8 | npm | turbo-stream | <3.0.0 | 3.0.0 |