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.
History

Thu, 11 Jun 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 04 Jun 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Shopify
Shopify react-router
Turbo-stream
Turbo-stream turbo Stream
CPEs cpe:2.3:a:shopify:react-router:*:*:*:*:*:node.js:*:*
cpe:2.3:a:turbo-stream:turbo_stream:*:*:*:*:*:node.js:*:*
Vendors & Products Shopify
Shopify react-router
Turbo-stream
Turbo-stream turbo Stream

Wed, 03 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 03 Jun 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Remix-run
Remix-run react-router
Remix-run turbo-stream
Vendors & Products Remix-run
Remix-run react-router
Remix-run turbo-stream

Wed, 03 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
Description 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.
Title React Router vulnerable to Denial of Service via reflected user input in single-fetch
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-03T13:19:02.279Z

Reserved: 2026-03-25T16:21:40.868Z

Link: CVE-2026-34077

cve-icon Vulnrichment

Updated: 2026-06-03T13:18:57.644Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-02T20:16:34.620

Modified: 2026-06-04T18:45:52.210

Link: CVE-2026-34077

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-06-02T17:31:35Z

Links: CVE-2026-34077 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-11T02:30:02Z