cve.bz

CVE-2025-66803

4.8 mediumEPSS 0.3%

Medium (4.8) in hotwired turbo. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in @hotwired/turbo 8.0.21.

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.

Severity

CVSS 3.1

4.8 medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS
0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
CWE
CWE-362
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-qppm-g56g-fpvpnpm@hotwired/turbo<8.0.218.0.21

References

Check your stackJSON