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{"bugzilla": {"description": "react-router: @remix-run/server-runtime: React Router: Denial of Service via unauthenticated manifest endpoint requests", "id": "2507833", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507833"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["A flaw was found in React Router. An unauthenticated attacker can send targeted requests to the manifest endpoint, leading to a denial of service (DoS). This can put a heavy load on the server, significantly slowing down response times and impacting the availability of the application."], "mitigation": {"lang": "en:us", "value": "Upgrade to react-router/@remix-run/server-runtime 7.18.0 or later once the fix is packaged in the affected Red Hat product. Where upgrading isn't immediately possible, rate-limiting or restricting access to the manifest endpoint at a reverse proxy or ingress layer can reduce exposure. Products that do not run React Router in Framework Mode (Declarative Mode or Data Mode only) are not affected regardless of the bundled react-router version."}, "name": "CVE-2026-55685", "package_state": [{"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Not affected", "impact": "moderate", "package_name": "cryostat-openshift-console-plugin-npm", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Not affected", "impact": "moderate", "package_name": "grafana-infinity-datasource-npm", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Not affected", "impact": "moderate", "package_name": "react-router", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:exploit_intelligence:0", "fix_state": "Affected", "impact": "moderate", "package_name": "exploit-intelligence-tech-preview/agent-client-rhel9", "product_name": "Exploit Intelligence"}, {"cpe": "cpe:/a:redhat:gatekeeper:3", "fix_state": "Not affected", "impact": "moderate", 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"cpe:/a:redhat:openshift_lightspeed", "fix_state": "Not affected", "impact": "moderate", "package_name": "openshift-lightspeed/lightspeed-console-plugin-pf5-rhel9", "product_name": "OpenShift Lightspeed"}, {"cpe": "cpe:/a:redhat:openshift_lightspeed", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-lightspeed/lightspeed-console-plugin-rhel9", "product_name": "OpenShift Lightspeed"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "impact": "moderate", "package_name": "openshift-pipelines/pipelines-console-plugin-pf5-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "impact": "moderate", "package_name": "openshift-pipelines/pipelines-console-plugin-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": 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"fix_state": "Not affected", "impact": "moderate", "package_name": "react-router", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Not affected", "impact": "moderate", "package_name": "react-router", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "impact": "moderate", "package_name": "rhoai/odh-dashboard-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Not affected", "impact": "moderate", "package_name": "rhoai/odh-mlflow-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "impact": "moderate", "package_name": "rhoai/odh-mod-arch-automl-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "impact": "moderate", "package_name": "rhoai/odh-mod-arch-autorag-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "impact": "moderate", "package_name": "rhoai/odh-mod-arch-eval-hub-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "impact": "moderate", "package_name": "rhoai/odh-mod-arch-gen-ai-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "impact": "moderate", "package_name": "rhoai/odh-mod-arch-maas-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "impact": "moderate", "package_name": "rhoai/odh-mod-arch-mlflow-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "impact": "moderate", "package_name": "rhoai/odh-mod-arch-model-registry-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "impact": "moderate", "package_name": "openshift4/ose-agent-installer-ui-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "impact": "moderate", "package_name": "openshift4/ose-console", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift4/ose-console-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "impact": "moderate", "package_name": "openshift4/ose-monitoring-plugin-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift4/ose-monitoring-plugin-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Not affected", "impact": "moderate", "package_name": "odf4/ocs-client-console-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Not affected", "impact": "moderate", "package_name": "odf4/odf-console-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Not affected", "impact": "moderate", "package_name": "odf4/odf-multicluster-console-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Not affected", "impact": "moderate", "package_name": "devspaces/dashboard-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Not affected", "impact": "moderate", "package_name": "devspaces/openvsx-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_distributed_tracing:3", "fix_state": "Not affected", "impact": "moderate", "package_name": "rhosdt/tempo-jaeger-query-rhel9", "product_name": "Red Hat OpenShift distributed tracing 3"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Not affected", "impact": "moderate", "package_name": "openshift-gitops-1/argocd-rhel8", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Not affected", "impact": "moderate", "package_name": "openshift-gitops-1/argocd-rhel9", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Not affected", "impact": "moderate", "package_name": "openshift-gitops-1/console-plugin-rhel8", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Not affected", "impact": "moderate", "package_name": "openshift-gitops-1/console-plugin-rhel9", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Not affected", "impact": "moderate", "package_name": "container-native-virtualization/kubevirt-console-plugin", "product_name": "Red Hat OpenShift Virtualization 4"}, {"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "container-native-virtualization/kubevirt-console-plugin-rhel9", "product_name": "Red Hat OpenShift Virtualization 4"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "quay/quay-rhel8", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "quay/quay-rhel9", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Not affected", "impact": "moderate", "package_name": "nodejs-react-router", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Not affected", "impact": "moderate", "package_name": "nodejs-react-router-dom", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Not affected", "impact": "moderate", "package_name": "satellite/iop-advisor-frontend-rhel9", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Not affected", "impact": "moderate", "package_name": "satellite/iop-host-inventory-frontend-rhel9", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Not affected", "impact": "moderate", "package_name": "satellite/iop-vulnerability-frontend-rhel9", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:red_hat_single_sign_on:7", "fix_state": "Not affected", "impact": "moderate", "package_name": "react-router", "product_name": "Red Hat Single Sign-On 7"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Not affected", "impact": "moderate", "package_name": "rhtas/rhtas-console-ui-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}, {"cpe": "cpe:/a:redhat:trusted_profile_analyzer:2", "fix_state": "Not affected", "impact": "moderate", "package_name": "rhtpa/rhtpa-trustification-service-rhel9", "product_name": "Red Hat Trusted Profile Analyzer"}, {"cpe": "cpe:/a:redhat:trusted_profile_analyzer:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhtpa/rhtpa-rhel10", "product_name": "Red Hat Trusted Profile Analyzer"}, {"cpe": "cpe:/a:redhat:secrets_management_console:0", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "external-secrets-management/console-plugin-rhel9", "product_name": "Secrets Management Console for Red Hat OpenShift"}, {"cpe": "cpe:/a:redhat:ansible_portal:2", "fix_state": "Not affected", "impact": "moderate", "package_name": "ansible-automation-platform/automation-portal", "product_name": "Self-service automation portal 2"}], "public_date": "2026-07-27T21:45:57Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-55685\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-55685\nhttps://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180\nhttps://github.com/remix-run/react-router/commit/09e6020d1950e54f361f7ad00938ecd4dde60929\nhttps://github.com/remix-run/react-router/pull/15186\nhttps://github.com/remix-run/react-router/releases/tag/react-router@7.18.0\nhttps://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78\nhttps://github.com/remix-run/react-router/security/advisories/GHSA-chx6-hx7r-mcp5"], "statement": "React Router (npm packages react-router and @remix-run/server-runtime) versions 7.0.0 through 7.17.0 expose an unauthenticated manifest endpoint. Repeated, targeted requests to this endpoint place heavy load on the server and can degrade or deny service for other users. This issue is a follow-up to CVE-2026-42342 and is fixed upstream in react-router/@remix-run/server-runtime 7.18.0.\nThis flaw only affects React Router's Framework Mode, applications that run a Node.js SSR server via @remix-run/server-runtime and serve the manifest endpoint. Applications using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>) do not run this server-side code path and are not affected. Simply bundling react-router does not by itself make a product exploitable; each console/UI component must be independently assessed by its owning team for Framework Mode usage and manifest endpoint exposure.\nRed Hat's CVSS score (6.5, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) is lower than the CVE.org score because the affected React Router components in Red Hat products are used in internal console UIs that are deployed behind authenticated ingress, reducing the practical attack surface. This mirrors the same re-scoring applied to the predecessor flaw, CVE-2026-42342, for the same endpoint family.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[7.0.0,7.18.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "react-router", "source": "cna", "vendor": "remix-run"}, "product": "react-router", "vendor": "remix-run"}], "created": "2026-07-28T01:00:04.976542+00:00", "updated": "2026-07-28T13:30:06.650887+00:00", "vendors": ["remix-run", "remix-run$PRODUCT$react-router"]}