Path Traversal in Remix-run React-router
CVE-2025-61686
React Router is a router for React. In @react-router/node versions 7.0.0 through 7.9.3, @remix-run/deno prior to version 2.17.2, and @remix-run/node prior to version 2.17.2, if createFileSessionStorage() is being used from @react-router/no…
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.161 (96.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
Affected products
- Remix-run React-router — versions @react-router/node >= 7.0.0, < 7.9.4, @remix-run/deno < 2.17.2, @remix-run/node < 2.17.2
- Shopify React-router\/node
- Shopify Remix-run\/deno
- Shopify Remix-run\/node
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2025-61686?
- CVE-2025-61686 is a critical-severity vulnerability in Remix-run React-router, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-01-10.
- How severe is CVE-2025-61686?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2025-61686 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.