React Router Vulnerabilities Patched in New Framework Releases
ID: 1674ef8a-5aa7-5e55-9850-112443332ff3
STIX ID: report--1674ef8a-5aa7-5e55-9850-112443332ff3
Feed Name: securityonline.info
Threat Score
React Router contains multiple critical vulnerabilities — including a chained RCE (CVE-2026-42211 requiring prototype pollution), a client-side XSS (CVE-2026-33245), and DoS issues (CVE-2026-34077, CVE-2026-42342) — that can lead to remote code execution, service outages, and degraded availability; maintainers advise immediate upgrades to React Router 7.15.0 or Remix 2.17.5 to mitigate the risks.
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