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Fencer Vulns
high 7.3

CVE-2023-26159 json

Follow Redirects improperly handles URLs in the url.parse() function

published 2024-01-02 2 y ago modified 2026-09-10 1 mo ago also GHSA-jchw-25xp-jwwc , EUVD-2024-0377

cvss
7.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

Versions of the package follow-redirects before 1.15.4 are vulnerable to Improper Input Validation due to the improper handling of URLs by the url.parse() function. When new URL() throws an error, it can be manipulated to misinterpret the hostname. An attacker could exploit this weakness to redirect traffic to a malicious site, potentially leading to information disclosure, phishing attacks, or other security breaches.

Patch / fix

  • npm follow-redirects 1.15.4
  • n/a follow-redirects 1.15.4
  • node-follow-redirects Debian 14, Debian 13 1.15.6+~1.14.4-1

debian advisories DEBIAN-CVE-2023-26159

  • node-follow-redirects Ubuntu Pro 18.04 LTS 1.2.4-1ubuntu0.18.04.1~esm1
  • node-follow-redirects Ubuntu Pro 20.04 LTS 1.2.4-1ubuntu0.20.04.1~esm1
  • node-follow-redirects Ubuntu Pro 22.04 LTS 1.14.9+~1.14.1-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2023-26159

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • reaper CBL-Mariner 2.0 3.1.1-8
  • python-tensorboard Azure Linux 3.0 2.16.2-1

azure linux advisories AZL-32314AZL-38299

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2023-26159 updated cvss 6.1

follow-redirects: Improper Input Validation due to the improper handling of URLs by the url.parse()

  • Red Hat Cryostat 2 nodejs-follow-redirects
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenShift Pipelines openshift-pipelines/pipelines-hub-ui-rhel8, openshift-pipelines/pipelines-hub-api-rhel8, openshift-pipelines/pipelines-hub-db-migration-rhel8 Red Hat OpenShift Service Mesh 2 openshift-service-mesh/kiali-rhel9
    affected: workaround, no fix available
  • Red Hat 3scale API Management Platform 2 3scale-amp2/system-rhel7 Red Hat Advanced Cluster Security 3 advanced-cluster-security/rhacs-main-rhel8
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel8 Red Hat build of Apicurio Registry 2 nodejs-follow-redirects
    affected: workaround, no fix available
  • Red Hat build of OptaPlanner 8 nodejs-follow-redirects Red Hat Data Grid 8 nodejs-follow-redirects Red Hat Decision Manager 7 nodejs-follow-redirects Red Hat Fuse 7 nodejs-follow-redirects Red Hat JBoss Data Grid 7 nodejs-follow-redirects Red Hat OpenShift Container Platform 4 console-dashboards-plugin-container, openshift4/nmstate-console-plugin-rhel9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift Data Science (RHODS) rhods/odh-dashboard-rhel8
    affected: workaround, no fix available
  • Red Hat OpenShift Dev Spaces devspaces/code-rhel8, devspaces/traefik-rhel8, devspaces/dashboard-rhel8 Red Hat OpenShift distributed tracing 2 rhosdt/jaeger-query-rhel8, rhosdt/jaeger-collector-rhel8, rhosdt/jaeger-all-in-one-rhel8
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/argo-rollouts-rhel8, openshift-gitops-1/console-plugin-rhel8
    affected: workaround, no fix available
show 18 more
  • Red Hat OpenShift Virtualization 4 container-native-virtualization/kubevirt-console-plugin Red Hat Process Automation 7 nodejs-follow-redirects
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Quay 3 quay/quay-rhel8
    affected: workaround, no fix available
  • Red Hat Cluster Observability Operator 1.0.0 cluster-observability-operator 1.0.0-1739789914
    fixed: vendor fix RHSA-2025:1609
  • Red Hat CNV 4.15 for RHEL 9 container-native-virtualization/kubevirt-console-plugin-rhel9 v4.15.2-383
    fixed: vendor fix RHSA-2024:3314
  • Red Hat Migration Toolkit for Virtualization 2.5 migration-toolkit-virtualization/mtv-console-plugin-rhel9 2.5.5-3
    fixed: vendor fix RHBA-2024:0928
  • Red Hat MTA 6.2 for RHEL 8 mta/mta-ui-rhel9 6.2.2-2, mta/mta-ui-rhel9 6.2.3-2, mta/mta-hub-rhel9 6.2.2-2, mta/mta-rhel8-operator 6.2.2-3, mta/mta-operator-bundle 6.2.2-5, mta/mta-pathfinder-rhel9 6.2.2-2, +1 more
    fixed: vendor fix RHSA-2024:1027
  • Red Hat MTA 7.0 for RHEL 9 mta/mta-ui-rhel9 7.0.3-13, mta/mta-cli-rhel9 7.0.3-16
    fixed: vendor fix RHSA-2024:3316
  • Red Hat MTR 1.2.4
    fixed: vendor fix RHSA-2024:0720
  • Red Hat multicluster engine for Kubernetes 2.4 for RHEL 8 multicluster-engine/console-mce-rhel8 v2.4.5-25, multicluster-engine/multicluster-engine-console-mce-rhel8 v2.4.5-25
    fixed: vendor fix RHBA-2024:3555
  • Red Hat NETOBSERV 1.5 for RHEL 9 network-observability/network-observability-console-plugin-rhel9 v1.5.0-89
    fixed: vendor fix RHSA-2024:0853
  • Red Hat Advanced Cluster Management for Kubernetes 2.9 for RHEL 8 rhacm2/console-rhel8 v2.9.4-22
    fixed: vendor fix RHBA-2024:3593
  • Red Hat OpenShift Container Platform 4.15 openshift4/ose-monitoring-plugin-rhel8 v4.15.0-202402082307.p0.gc3d2272.assembly.stream.el8
    fixed: vendor fix RHSA-2023:7198
  • Red Hat OpenShift distributed tracing 3.1 rhosdt/tempo-rhel8 2.3.1-2, rhosdt/tempo-query-rhel8 0.8.0-3, rhosdt/jaeger-agent-rhel8 1.53.0-2, rhosdt/jaeger-query-rhel8 1.53.0-2, rhosdt/tempo-gateway-rhel8 1.0.0-1, rhosdt/tempo-rhel8-operator 0.8.0-2, +13 more
    fixed: vendor fix RHSA-2024:0998
  • Red Hat RHDH 1.1 for RHEL 9 rhdh/rhdh-hub-rhel9 1.1-97
    fixed: vendor fix RHEA-2024:1366
  • Red Hat RHODF 4.15 for RHEL 9 odf4/odf-console-rhel9 v4.15.0-57, odf4/odf-multicluster-console-rhel9 v4.15.0-54
    fixed: vendor fix RHSA-2024:1383
  • Red Hat RHOL 5.8 for RHEL 9 openshift-logging/logging-view-plugin-rhel9 v5.8.2-3
    fixed: vendor fix RHSA-2024:0271
  • Red Hat RHOSSM 2.5 for RHEL 8 openshift-service-mesh/pilot-rhel8 2.5.1-8, openshift-service-mesh/kiali-rhel8 1.73.7-5, openshift-service-mesh/grafana-rhel8 2.5.1-2, openshift-service-mesh/proxyv2-rhel8 2.5.1-8, openshift-service-mesh/istio-cni-rhel8 2.5.1-8, openshift-service-mesh/ratelimit-rhel8 2.5.1-2, +4 more
    fixed: vendor fix RHSA-2024:1946
  • Red Hat Cluster Observability Operator 1.0.0 cluster-observability-operator 1.0.0-1739195312, cluster-observability-operator 1.0.0-1739195316, cluster-observability-operator 1.0.0-1739195441, cluster-observability-operator 1.0.0-1739195698, cluster-observability-operator 1.0.0-1739195862, cluster-observability-operator 1.0.0-1739195977, +7 more Red Hat CNV 4.15 for RHEL 9 container-native-virtualization/virt-api-rhel9 v4.15.2-9, container-native-virtualization/pr-helper-rhel9 v4.15.2-9, container-native-virtualization/virtio-win-rhel9 v4.15.2-2, container-native-virtualization/aaq-server-rhel9 v4.15.2-17, container-native-virtualization/kubemacpool-rhel9 v4.15.2-2, container-native-virtualization/mtq-operator-rhel9 v4.15.2-4, +43 more Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/kibana6-rhel8 Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-ui-rhel8 Red Hat Migration Toolkit for Virtualization 2.5 migration-toolkit-virtualization/mtv-api-rhel9 2.5.5-2, migration-toolkit-virtualization/mtv-rhel8-operator 2.5.5-8, migration-toolkit-virtualization/mtv-virt-v2v-rhel9 2.5.5-2, migration-toolkit-virtualization/mtv-controller-rhel9 2.5.5-2, migration-toolkit-virtualization/mtv-operator-bundle 2.5.5-16, migration-toolkit-virtualization/mtv-validation-rhel9 2.5.5-2, +7 more
    not affected: vulnerable code not present

26 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
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • security.snyk.io https://security.snyk.io/vuln/SNYK-JS-FOLLOWREDIRECTS-6141137 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/follow-redirects/follow-redirects/issues/235 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P
CNA 3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
GitHub 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
npm follow-redirects
<1.15.4
1.15.4

Affected products

  • n/a follow-redirects

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-601 URL Redirection to Untrusted Site

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.