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Fencer Vulns
critical 9.1

CVE-2025-61686 in the critical feed json

React Router has Path Traversal in File Session Storage

published 2026-01-08 10 mo ago modified 2026-09-18 51 d ago also EUVD-2026-1468 , GHSA-9583-h5hc-x8cw

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
17.3%
EPSS 17.3% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

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.

Patch / fix

  • npm @react-router/node 7.9.4
  • npm @remix-run/node 2.17.2
  • npm @remix-run/deno 2.17.2
  • shopify react-router/node 7.9.4
  • shopify remix-run/deno 2.17.2
  • shopify remix-run/node 2.17.2
  • golang-github-prometheus-prometheus SLE Module for Package Hub 15 SP7 3.13.2-150100.4.40.2
  • grafana Multi Linux Manager Tools SLE-15 12.4.10-150002.4.27.1
  • mgr-push Multi Linux Manager Tools SLE-15 5.2.5-150002.3.12.1
  • spacecmd Multi Linux Manager Tools SLE-15 5.2.10-150002.3.15.1
  • uyuni-tools Multi Linux Manager Tools SLE-Micro-5, Multi Linux Manager Tools SLE-15 5.2.17-150002.3.20.1
  • venv-salt-minion Multi Linux Manager Tools SLE-Micro-5, Multi Linux Manager Tools SLE-15 3006.0-150002.5.22.1
  • spacewalk-client-tools Multi Linux Manager Tools SLE-15 5.2.7-150002.3.12.1
  • golang-github-prometheus-prometheus Multi Linux Manager Tools SLE-15 3.13.2-150002.3.19.1

suse advisories SUSE-SU-2026:4606-1SUSE-SU-2026:4585-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-61686 updated cvss 9.1

react-router: React Router has Path Traversal in File Session Storage

  • Red Hat Cryostat 4 io.cryostat-cryostat Red Hat Gatekeeper 3 gatekeeper/gatekeeper-rhel9 Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/kibana6-rhel8, openshift-logging/logging-loki-rhel9, openshift-logging/loki-rhel9-operator, openshift-logging/opa-openshift-rhel9, openshift-logging/elasticsearch6-rhel9, openshift-logging/loki-operator-bundle, +6 more Red Hat Migration Toolkit for Applications 7 mta/mta-ui-rhel9 Red Hat Migration Toolkit for Applications 8 mta/mta-ui-rhel9 Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-ui-rhel8
    +13 more products
    Red Hat Migration Toolkit for Virtualization mtv-candidate/mtv-console-plugin-rhel9, migration-toolkit-virtualization/mtv-console-plugin-rhel9 Red Hat Multicluster Engine for Kubernetes multicluster-engine/console-mce-rhel8, multicluster-engine/console-mce-rhel9 Red Hat Network Observability Operator network-observability/network-observability-console-plugin-rhel9, network-observability/network-observability-console-plugin-compat-rhel9 Red Hat Node HealthCheck Operator workload-availability/node-remediation-console-rhel9, workload-availability/node-healthcheck-rhel9-operator, workload-availability/node-healthcheck-operator-bundle, workload-availability/node-healthcheck-must-gather-rhel9 Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-console-plugin-rhel9, openshift-lightspeed/lightspeed-console-plugin-pf5-rhel9 Red Hat OpenShift Pipelines openshift-pipelines/pipelines-hub-ui-rhel8, openshift-pipelines/pipelines-hub-api-rhel8, openshift-pipelines/pipelines-console-plugin-rhel8, openshift-pipelines/pipelines-console-plugin-rhel9, openshift-pipelines/pipelines-hub-db-migration-rhel8 Red Hat OpenShift Service Mesh 2 openshift-service-mesh/kiali-rhel8, openshift-service-mesh/kiali-ossmc-rhel8 Red Hat OpenShift Service Mesh 3 openshift-service-mesh/kiali-rhel9, openshift-service-mesh/kiali-ossmc-rhel9, openshift-service-mesh/kiali-rhel9-operator, openshift-service-mesh/kiali-operator-bundle Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/console-rhel9, rhacm2/prometheus-rhel9, rhacm2/acm-grafana-rhel9, rhacm2/acm-flightctl-ui-rhel9, rhacm2/acm-flightctl-ocp-ui-rhel9, rhacm2/prometheus-alertmanager-rhel9 Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel8, advanced-cluster-security/rhacs-roxctl-rhel8, advanced-cluster-security/rhacs-rhel8-operator, advanced-cluster-security/rhacs-central-db-rhel8, advanced-cluster-security/rhacs-scanner-v4-rhel8, advanced-cluster-security/rhacs-scanner-v4-db-rhel8 Red Hat Ansible Automation Platform 2 automation-hub, python-galaxy-ng, automation-gateway, python3x-galaxy-ng, python3.11-galaxy-ng, automation-controller, +5 more Red Hat build of Apache Camel - HawtIO 4 io.hawt-project Red Hat build of Apicurio Registry 2 io.apicurio-apicurio-registry
    not affected: vulnerable code not present
  • Red Hat Build of Kueue kueue/kueue-rhel9, kueue/kueue-rhel9-operator, kueue/kueue-operator-bundle, kueue/kueue-must-gather-rhel9
    not affected: component not present
  • Red Hat build of OptaPlanner 8 org.optaweb.vehiclerouting-optaweb-vehicle-routing Red Hat Connectivity Link 1 rhcl-1/rhcl-console-plugin-rhel9 Red Hat Data Grid 8 org.infinispan-infinispan-console Red Hat Developer Hub 1 rhdh/rhdh-hub-rhel9 Red Hat Discovery 2 discovery/discovery-ui-rhel9 Red Hat Edge Manager 1 rhem/flightctl-ui-rhel9, rhem/flightctl-ui-ocp-rhel9
    +14 more products
    Red Hat Edge Manager preview rhem/flightctl-ui-rhel9, rhem/flightctl-api-rhel9, rhem/flightctl-ui-ocp-rhel9, rhem/flightctl-worker-rhel9, rhacm2/acm-flightctl-ui-rhel9, rhem/flightctl-db-setup-rhel9, +7 more Red Hat Enterprise Linux 8 pcs, pcs-snmp, dotnet5.0-build-reference-packages Red Hat Enterprise Linux 9 ipa, ipa-client, ipa-common, ipa-server, ipa-selinux, ipa-client-epn, +13 more Red Hat Enterprise Linux 10 ipa Red Hat Fuse 7 io.syndesis-syndesis-parent Red Hat JBoss Enterprise Application Platform 8 org.keycloak-keycloak-parent Red Hat JBoss Enterprise Application Platform Expansion Pack org.keycloak-keycloak-parent Red Hat OpenShift AI (RHOAI) rhoai/odh-dashboard-rhel8, rhoai/odh-dashboard-rhel9, rhoai/odh-model-registry-rhel8, rhoai/odh-mod-arch-gen-ai-rhel9, rhoai/odh-mod-arch-model-registry-rhel9, rhoai/odh-data-science-pipelines-argo-argoexec-rhel8, +1 more Red Hat OpenShift Container Platform 4 openshift4/ose-console, openshift4/ose-console-rhel9, openshift4/ose-monitoring-plugin-rhel8, openshift4/ose-monitoring-plugin-rhel9, openshift4/nmstate-console-plugin-rhel9, openshift4/ose-agent-installer-ui-rhel9, +2 more Red Hat Openshift Data Foundation 4 odf4/odf-console-rhel9, odf4/ocs-client-console-rhel9, odf4/odf-multicluster-console-rhel9 Red Hat OpenShift Dev Spaces devspaces/openvsx-rhel9, devspaces/dashboard-rhel9 Red Hat OpenShift distributed tracing 3 rhosdt/tempo-jaeger-query-rhel8 Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/argocd-rhel9, openshift-gitops-1/argo-rollouts-rhel8, openshift-gitops-1/console-plugin-rhel8, openshift-gitops-1/gitops-operator-bundle Red Hat OpenShift Virtualization 4 container-native-virtualization/kubevirt-console-plugin, container-native-virtualization/kubevirt-console-plugin-rhel9
    not affected: vulnerable code not present

6 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

17.35% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CISA ADP 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
GitHub 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
npm @react-router/node
>=7.0.0, <7.9.4
7.9.4
npm @remix-run/node
<2.17.2
2.17.2
npm @remix-run/deno
<2.17.2
2.17.2

Affected products

  • remix-run react-router
  • Red Hat Cryostat 4
  • Red Hat Gatekeeper 3
  • Red Hat Logging Subsystem for Red Hat OpenShift
  • Red Hat Migration Toolkit for Applications 7
  • Red Hat Migration Toolkit for Applications 8
  • Red Hat Migration Toolkit for Containers
  • Red Hat Migration Toolkit for Virtualization
  • Red Hat Multicluster Engine for Kubernetes
  • Red Hat Network Observability Operator
  • Red Hat Node HealthCheck Operator
  • Red Hat OpenShift Lightspeed
  • Red Hat OpenShift Pipelines
  • Red Hat OpenShift Service Mesh 2
  • Red Hat OpenShift Service Mesh 3
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
  • Red Hat Red Hat Advanced Cluster Security 4
  • Red Hat Red Hat Ansible Automation Platform 2
  • Red Hat Red Hat build of Apache Camel - HawtIO 4
  • Red Hat Red Hat build of Apicurio Registry 2
  • Red Hat Red Hat Build of Kueue
  • Red Hat Red Hat build of OptaPlanner 8
  • Red Hat Red Hat Connectivity Link 1
  • Red Hat Red Hat Data Grid 8
  • Red Hat Red Hat Developer Hub
  • Red Hat Red Hat Discovery 2
  • Red Hat Red Hat Edge Manager 1
  • Red Hat Red Hat Edge Manager preview
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Fuse 7
  • Red Hat Red Hat JBoss Enterprise Application Platform 8
  • Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat Red Hat OpenShift AI (RHOAI)
  • Red Hat Red Hat OpenShift Container Platform 4
  • Red Hat Red Hat Openshift Data Foundation 4
  • Red Hat Red Hat OpenShift Dev Spaces
  • Red Hat Red Hat OpenShift distributed tracing 3
  • Red Hat Red Hat OpenShift GitOps
  • Red Hat Red Hat OpenShift Virtualization 4
  • Red Hat Red Hat Process Automation 7
  • Red Hat Red Hat Quay 3
  • Red Hat Red Hat Satellite 6
  • Red Hat Red Hat Single Sign-On 7
  • Red Hat Red Hat Trusted Artifact Signer
  • Red Hat Red Hat Trusted Profile Analyzer

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.