CVE-2025-66803
JavaScript vulnerability analysis and mitigation

Race condition in the turbo-frame element handler in Hotwired Turbo before 8.0.x causes logout operations to fail when delayed frame responses reapply session cookies after logout. This can be exploited by remote attackers via selective network delays (e.g. delaying requests based on sequence or timing) or by physically proximate attackers when the race condition occurs naturally on shared computers.


SourceNVD

Related JavaScript vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-23947CRITICAL9.3
  • JavaScriptJavaScript
  • @orval/core
NoYesJan 20, 2026
CVE-2026-23950HIGH8.8
  • JavaScriptJavaScript
  • grafana-graphite
NoYesJan 20, 2026
CVE-2026-22037HIGH8.4
  • JavaScriptJavaScript
  • @fastify/express
NoYesJan 19, 2026
CVE-2026-23522LOW3.7
  • JavaScriptJavaScript
  • @lobehub/chat
NoNoJan 19, 2026
CVE-2025-66803LOW1.7
  • JavaScriptJavaScript
  • @hotwired/turbo
NoYesJan 20, 2026

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