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CVE-2026-42342

Опубликовано: 02 июн. 2026
Источник: redhat
CVSS3: 6.5
EPSS Низкий

Описание

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.

A flaw was found in React Router and @remix-run/server-runtime. A remote attacker can exploit this vulnerability by sending certain crafted requests to the __manifest endpoint. This can lead to unbounded path expansion, consuming disproportionate server resources. The primary consequence is a denial of service (DoS), resulting in response time degradation and service unavailability for end users.

Отчет

A flaw was found in React Router (Framework Mode) and Remix (@remix-run/server-runtime). Crafted requests to the __manifest endpoint can trigger unbounded path expansion, consuming disproportionate server resources and causing denial of service through response time degradation or complete service unavailability. This only affects applications using React Router Framework Mode or Remix server runtime; applications using Declarative Mode (BrowserRouter) or Data Mode (createBrowserRouter/RouterProvider) are not impacted. In Red Hat products, affected React Router components are used in internal console UIs that are deployed behind authenticated ingress, reducing the attack surface.

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Upgrade to a patched version to fully mitigate the issues (ref: https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78).

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Cryostat 4cryostat-openshift-console-plugin-npmNot affected
Cryostat 4grafana-infinity-datasource-npmNot affected
Cryostat 4react-routerNot affected
Exploit Intelligenceexploit-intelligence-tech-preview/agent-client-rhel9Affected
Gatekeeper 3gatekeeper/gatekeeper-rhel9Fix deferred
Migration Toolkit for Applications 8mta/mta-ui-rhel8Not affected
Migration Toolkit for Containersrhmtc/openshift-migration-ui-rhel8Affected
Migration Toolkit for Virtualizationmigration-toolkit-virtualization/mtv-console-plugin-rhel9Affected
Migration Toolkit for Virtualizationmtv-candidate/mtv-console-plugin-rhel9Will not fix
Multicluster Engine for Kubernetesmulticluster-engine/console-mce-rhel9Fix deferred

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-770
https://bugzilla.redhat.com/show_bug.cgi?id=2484116react-router: @remix-run/server-runtime: React Router / Remix: Denial of Service via unbounded path expansion in __manifest endpoint

EPSS

Процентиль: 22%
0.00299
Низкий

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 7.5
nvd
2 месяца назад

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.

CVSS3: 7.5
github
2 месяца назад

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

EPSS

Процентиль: 22%
0.00299
Низкий

6.5 Medium

CVSS3

Уязвимость CVE-2026-42342