CVE-2025-66803

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...

CVE-2025-66803

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...

Turbo Frame responses can restore stale session cookies

Summary A race condition in Turbo Frames allows delayed HTTP responses to restore stale session cookies after session-modifying operations. Details Browsers automatically process Set-Cookie headers from HTTP responses. When a Turbo Frame request is in-flight during a session-modifying action such...

CVE-2025-66803

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...

CVE-2025-66803

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...

CVE-2025-66803

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...

Turbo security vulnerabilities

Turbo is a code development tool open source by Hotwire. Versions of Turbo prior to 8.0.x contained security vulnerabilities. These vulnerabilities stemmed from race conditions in the turbo-frame element handler, which could lead to failed logouts and the reapplication of session cookies after a...

PT-2026-3642

Name of the Vulnerable Software and Affected Versions Hotwired Turbo versions prior to 8.0.0 Description A race condition exists in the turbo-frame element handler. This issue can cause logout operations to fail when delayed frame responses reapply session cookies after a user has logged out...

EUVD-2026-3351

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...

CVE-2025-66803

CVE-2025-66803 describes a race condition in the turbo-frame element handler of Hotwired Turbo (pre-8.0.x). The issue can cause logout operations to fail when delayed frame responses reapply session cookies, enabling exploitation by delaying HTTP responses (network delays) or naturally on shared ...