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This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
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/node (or @remix-run/node/@remix-run/deno in Remix v2) with an unsigned cookie, it is possible for an attacker to cause the session to try to read/write from a location outside the specified session file directory. The success of the attack would depend on the permissions of the web server process to access those files. Read files cannot be returned directly to the attacker. Session file reads would only succeed if the file matched the expected session file format. If the file matched the session file format, the data would be populated into the server side session but not directly returned to the attacker unless the application logic returned specific session information. This issue has been patched in @react-router/node version 7.9.4, @remix-run/deno version 2.17.2, and @remix-run/node version 2.17.2.
Metrics
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[{"vendor":"Red Hat","product":"Cryostat 4","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:cryostat:4"]},{"vendor":"Red Hat","product":"Gatekeeper 3","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:gatekeeper:3"]},{"vendor":"Red Hat","product":"Logging Subsystem for Red Hat OpenShift","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:logging:5"]},{"vendor":"Red Hat","product":"Migration Toolkit for Applications 7","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:migration_toolkit_applications:7"]},{"vendor":"Red Hat","product":"Migration Toolkit for Applications 8","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:migration_toolkit_applications:8"]},{"vendor":"Red Hat","product":"Migration Toolkit for Containers","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:rhmt:1"]},{"vendor":"Red Hat","product":"Migration Toolkit for Virtualization","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:migration_toolkit_virtualization:2"]},{"vendor":"Red Hat","product":"Multicluster Engine for Kubernetes","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:multicluster_engine"]},{"vendor":"Red Hat","product":"Network Observability Operator","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:network_observ_optr:1"]},{"vendor":"Red Hat","product":"Node HealthCheck Operator","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:workload_availability_nhc:0"]},{"vendor":"Red Hat","product":"OpenShift Lightspeed","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_lightspeed"]},{"vendor":"Red Hat","product":"OpenShift Pipelines","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_pipelines:1"]},{"vendor":"Red Hat","product":"OpenShift Service Mesh 2","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:service_mesh:2"]},{"vendor":"Red Hat","product":"OpenShift Service Mesh 3","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:service_mesh:3"]},{"vendor":"Red Hat","product":"Red Hat Advanced Cluster Management for Kubernetes 2","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:acm:2"]},{"vendo
OR
*cpe:2.3:a:shopify:remix-run/deno*:*:*:*:*:*:node.js:*:* versions up to (excluding) 2.17.2
*cpe:2.3:a:shopify:remix-run/node*:*:*:*:*:*:node.js:*:* versions up to (excluding) 2.17.2
*cpe:2.3:a:shopify:react-router/node*:*:*:*:*:*:node.js:*:* versions from (including) 7.0.0 up to (excluding) 7.9.4
OR
*cpe:2.3:a:shopify:react-router/node:*:*:*:*:*:node.js:*:* versions from (including) 7.0.0 up to (excluding) 7.9.4
*cpe:2.3:a:shopify:remix-run/deno:*:*:*:*:*:node.js:*:* versions up to (excluding) 2.17.2
*cpe:2.3:a:shopify:remix-run/node:*:*:*:*:*:node.js:*:* versions up to (excluding) 2.17.2
Initial Analysis by NIST2/04/2026 9:49:03 AM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:a:shopify:remix-run/deno*:*:*:*:*:*:node.js:*:* versions up to (excluding) 2.17.2
*cpe:2.3:a:shopify:remix-run/node*:*:*:*:*:*:node.js:*:* versions up to (excluding) 2.17.2
*cpe:2.3:a:shopify:react-router/node*:*:*:*:*:*:node.js:*:* versions from (including) 7.0.0 up to (excluding) 7.9.4
Added
Reference Type
GitHub, Inc.: https://github.com/remix-run/react-router/security/advisories/GHSA-9583-h5hc-x8cw Types: Third Party Advisory
New CVE Received from GitHub, Inc.1/09/2026 10:15:48 PM
Action
Type
Old Value
New Value
Added
Description
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/node (or @remix-run/node/@remix-run/deno in Remix v2) with an unsigned cookie, it is possible for an attacker to cause the session to try to read/write from a location outside the specified session file directory. The success of the attack would depend on the permissions of the web server process to access those files. Read files cannot be returned directly to the attacker. Session file reads would only succeed if the file matched the expected session file format. If the file matched the session file format, the data would be populated into the server side session but not directly returned to the attacker unless the application logic returned specific session information. This issue has been patched in @react-router/node version 7.9.4, @remix-run/deno version 2.17.2, and @remix-run/node version 2.17.2.
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