CVE-2025-66803

Published: Jan 20, 2026Modified: Jun 17, 2026

4.8

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitability: 2.2 / Impact: 2.5

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

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.

Affected (1)

Products: Hotwired: Turbo

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Hotwired Turbo	Before 8.0.21

Related CWEs

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (3)

https://github.com/hotwired/turbo/pull/1399

Source: cve@mitre.org

ExploitIssue TrackingPatch

https://github.com/hotwired/turbo/security/advisories/GHSA-qppm-g56g-fpvp

Source: cve@mitre.org

Vendor Advisory

https://turbo.hotwired.dev/handbook/frames

Source: cve@mitre.org

Product

Timeline

No history available yet.