CVE-2025-61686 (GCVE-0-2025-61686)

Vulnerability from cvelistv5 – Published: 2026-01-10 02:41 – Updated: 2026-06-27 05:17
VLAI
Title
React Router has Path Traversal in File Session Storage
Summary
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.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
remix-run react-router Affected: @react-router/node >= 7.0.0, < 7.9.4
Affected: @remix-run/deno < 2.17.2
Affected: @remix-run/node < 2.17.2
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Red Hat Cryostat 4     cpe:/a:redhat:cryostat:4
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Red Hat Gatekeeper 3     cpe:/a:redhat:gatekeeper:3
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Red Hat Logging Subsystem for Red Hat OpenShift     cpe:/a:redhat:logging:5
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Red Hat Migration Toolkit for Applications 7     cpe:/a:redhat:migration_toolkit_applications:7
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Red Hat Migration Toolkit for Applications 8     cpe:/a:redhat:migration_toolkit_applications:8
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Red Hat Migration Toolkit for Containers     cpe:/a:redhat:rhmt:1
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Red Hat Migration Toolkit for Virtualization     cpe:/a:redhat:migration_toolkit_virtualization:2
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Red Hat Multicluster Engine for Kubernetes     cpe:/a:redhat:multicluster_engine
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Red Hat Network Observability Operator     cpe:/a:redhat:network_observ_optr:1
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Red Hat Node HealthCheck Operator     cpe:/a:redhat:workload_availability_nhc:0
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Red Hat OpenShift Lightspeed     cpe:/a:redhat:openshift_lightspeed
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Red Hat OpenShift Pipelines     cpe:/a:redhat:openshift_pipelines:1
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Red Hat OpenShift Service Mesh 2     cpe:/a:redhat:service_mesh:2
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Red Hat OpenShift Service Mesh 3     cpe:/a:redhat:service_mesh:3
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Red Hat Red Hat Advanced Cluster Management for Kubernetes 2     cpe:/a:redhat:acm:2
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Red Hat Red Hat Advanced Cluster Security 4     cpe:/a:redhat:advanced_cluster_security:4
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Red Hat Red Hat Ansible Automation Platform 2     cpe:/a:redhat:ansible_automation_platform:2
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Red Hat Red Hat build of Apache Camel - HawtIO 4     cpe:/a:redhat:apache_camel_hawtio:4
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Red Hat Red Hat build of Apicurio Registry 2     cpe:/a:redhat:service_registry:2
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Red Hat Red Hat Build of Kueue     cpe:/a:redhat:kueue_operator:1
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Red Hat Red Hat build of OptaPlanner 8     cpe:/a:redhat:optaplanner:::el6
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Red Hat Red Hat Connectivity Link 1     cpe:/a:redhat:connectivity_link:1
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Red Hat Red Hat Data Grid 8     cpe:/a:redhat:jboss_data_grid:8
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Red Hat Red Hat Developer Hub     cpe:/a:redhat:rhdh:1
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Red Hat Red Hat Discovery 2     cpe:/a:redhat:discovery:2::el9
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Red Hat Red Hat Edge Manager 1     cpe:/a:redhat:edge_manager:1
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Red Hat Red Hat Edge Manager preview     cpe:/a:redhat:edge_manager:0
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Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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Red Hat Red Hat Fuse 7     cpe:/a:redhat:jboss_fuse:7
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Red Hat Red Hat JBoss Enterprise Application Platform 8     cpe:/a:redhat:jboss_enterprise_application_platform:8
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Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack     cpe:/a:redhat:jbosseapxp
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Red Hat Red Hat OpenShift AI (RHOAI)     cpe:/a:redhat:openshift_ai
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Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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Red Hat Red Hat Openshift Data Foundation 4     cpe:/a:redhat:openshift_data_foundation:4
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Red Hat Red Hat OpenShift Dev Spaces     cpe:/a:redhat:openshift_devspaces:3
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Red Hat Red Hat OpenShift distributed tracing 3     cpe:/a:redhat:openshift_distributed_tracing:3
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Red Hat Red Hat OpenShift GitOps     cpe:/a:redhat:openshift_gitops:1
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Red Hat Red Hat OpenShift Virtualization 4     cpe:/a:redhat:container_native_virtualization:4
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Red Hat Red Hat Process Automation 7     cpe:/a:redhat:jboss_enterprise_bpms_platform:7
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Red Hat Red Hat Quay 3     cpe:/a:redhat:quay:3
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Red Hat Red Hat Satellite 6     cpe:/a:redhat:satellite:6
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Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
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Red Hat Red Hat Trusted Artifact Signer     cpe:/a:redhat:trusted_artifact_signer:1
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Red Hat Red Hat Trusted Profile Analyzer     cpe:/a:redhat:trusted_profile_analyzer:2
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        "advisory": "GHSA-9583-h5hc-x8cw",
        "discovery": "UNKNOWN"
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      "title": "React Router has Path Traversal in File Session Storage"
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-61686",
    "datePublished": "2026-01-10T02:41:22.741Z",
    "dateReserved": "2025-09-29T20:25:16.182Z",
    "dateUpdated": "2026-06-27T05:17:26.267Z",
    "state": "PUBLISHED"
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\"value\": \"A security issue was discovered in the react-router/node component of React Router. It is possible for an attacker manipulate an unsigned cookie 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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-22\", \"description\": \"Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\", \"shortName\": \"redhat-SADP\", \"dateUpdated\": \"2026-06-27T05:17:26.267Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-61686\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-12T13:58:36.773708Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-03T18:11:21.336Z\"}}], \"cna\": {\"title\": \"React Router has Path Traversal in File Session Storage\", \"source\": {\"advisory\": \"GHSA-9583-h5hc-x8cw\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"remix-run\", \"product\": \"react-router\", \"versions\": [{\"status\": \"affected\", \"version\": \"@react-router/node \u003e= 7.0.0, \u003c 7.9.4\"}, {\"status\": \"affected\", \"version\": \"@remix-run/deno \u003c 2.17.2\"}, {\"status\": \"affected\", \"version\": \"@remix-run/node \u003c 2.17.2\"}]}], \"references\": [{\"url\": \"https://github.com/remix-run/react-router/security/advisories/GHSA-9583-h5hc-x8cw\", \"name\": \"https://github.com/remix-run/react-router/security/advisories/GHSA-9583-h5hc-x8cw\", \"tags\": [\"x_refsource_CONFIRM\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-22\", \"description\": \"CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-01-10T02:41:22.741Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-61686\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-27T05:17:26.267Z\", \"dateReserved\": \"2025-09-29T20:25:16.182Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-01-10T02:41:22.741Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.