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...

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...

CVE-2025-66803: Concurrent Execution using Shared Resource with Improper Synchronization

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...

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...

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...

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

A race condition in the turbo-frame element handler of Hotwired Turbo (versions prior to 8.0.x ) allows delayed HTTP responses to restore stale session cookies after a logout operation. This occurs because browsers automatically process Set-Cookie headers; if a Turbo Frame request is in-flight du...