Read the docs
TI-2025-41056 Aliases CVE-2025-66803GHSA-qppm-g56g-fpvp

Race condition in the turbo-frame element handler in Hotwired Turbo before 8.0.x causes…

Priority MEDIUM 55CWE-362Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-613.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00283 20th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed @hotwired/turbo (npm): 8.0.21

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—@hotwired/turbo (npm)before 8.0.218.0.21Patch availableGHSA-qppm-g56g-fpvp
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • @hotwired/turbo (npm) Vendor— Affected before 8.0.21 Fixed in 8.0.21 Patch available GHSA-qppm-g56g-fpvp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hotwired:turbo:*:*:*:*:*:node.js:*:*before 8.0.21VulnerableHotwired
  • cpe:2.3:a:hotwired:turbo:*:*:*:*:*:node.js:*:* Versions before 8.0.21 Vulnerable ·Hotwired

Remediation

  • Fix · GHSA-qppm-g56g-fpvp @hotwired/turbo (npm) Fixed in 8.0.21 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-66803
  2. 2026-10-03 Alias added: GHSA-qppm-g56g-fpvp

References

Exploit 1

Advisory 2

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences