HIGHnpm

React Router: RSCErrorHandler Missing Protocol Validation (XSS)

React Router: RSCErrorHandler Missing Protocol Validation (XSS)

CVE-2026-53667Published 1 week agoUpdated 5 days agoSource: OSV

Affected packages

  • react-router

Exploit signal

Known exploited (CISA KEV)
No
EPSS score
0.35%
EPSS percentile
27.7%

EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs. This advisory is in the top 28%.

React Router: RSCErrorHandler Missing Protocol Validation (XSS) | HackTribune