Bug 2484116 (CVE-2026-42342) - CVE-2026-42342 react-router: @remix-run/server-runtime: React Router / Remix: Denial of Service via unbounded path expansion in __manifest endpoint
Summary: CVE-2026-42342 react-router: @remix-run/server-runtime: React Router / Remix:...
Keywords:
Status: NEW
Alias: CVE-2026-42342
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-02 20:02 UTC by OSIDB Bzimport
Modified: 2026-07-02 12:17 UTC (History)
182 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-06-02 20:02:32 UTC 
React Router is a router for React. In versions 7.0.0 through 7.14.x of react-router and versions 2.10.0 through 2.17.4 of @remix-run/server-runtime, certain crafted requests can consume disproportionate server resources via unbounded path expansion in the __manifest endpoint, resulting in response time degradation and/or service unavailability for end users. This affects React Router Framework Mode applications as well as Remix applications. This does not impact applications using Declarative Mode (`<BrowserRouter>`) or Data Mode (`createBrowserRouter/<RouterProvider>`). This is patched in react-router version 7.15.0 and @remix-run/server-runtime version 2.17.5.
Comment 2 David Hanina 2026-06-03 06:49:25 UTC 
As FreeIPA goes, we can safely waive this one, as we use Declarative mode, which is not affected
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