Vulnerability library
Security checkJune 03, 2026

React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint

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Description

There exists a potential DOS attack vector in React Router Framework Mode applications (as well as Remix v2.10.0 - 2.17.4). Certain requests can be crafted to consume disproportionate resources on the server, resulting in response time degredation and/or service unavailability for end users.

Recommendation

Update the @remix-run/server-runtime package to the latest compatible version. Followings are version details:

  • Affected version(s): >= 2.10.0, < 2.17.5
  • Patched version(s): 2.17.5

References

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Related Issues

See something that needs correcting? Let us knowUpdated June 03, 2026