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Fencer Vulns
high 7.5

CVE-2024-21536 json

Denial of service in http-proxy-middleware

published 2024-10-19 2 y ago modified 2026-09-10 1 mo ago also GHSA-c7qv-q95q-8v27 , EUVD-2024-3014

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 64%
public exploits
0
none known

Summary

Versions of the package http-proxy-middleware before 2.0.7, from 3.0.0 and before 3.0.3 are vulnerable to Denial of Service (DoS) due to an UnhandledPromiseRejection error thrown by micromatch. An attacker could kill the Node.js process and crash the server by making requests to certain paths.

Patch / fix

  • npm http-proxy-middleware 2.0.7, 3.0.3
  • n/a http-proxy-middleware 2.0.7, 3.0.3
  • chimurai http-proxy-middleware 2.0.7, 3.0.3

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-2024-21536 updated cvss 7.5

http-proxy-middleware: http-proxy-middleware: Denial of Service via unhandled error during path matching

  • Red Hat Cryostat 3 io.cryostat-cryostat3
    affected: workaround, no fix available “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/logging-view-plugin-rhel9 Red Hat Migration Toolkit for Applications 7 mta/mta-ui-rhel9, mta/mta-cli-rhel9 Red Hat Node HealthCheck Operator workload-availability/node-remediation-console-rhel8
    affected: workaround, no fix planned “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat OpenShift Pipelines openshift-pipelines/pipelines-hub-api-rhel8, openshift-pipelines/pipelines-console-plugin-rhel8, openshift-pipelines/pipelines-hub-db-migration-rhel8
    affected: workaround, no fix available, no fix planned “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat OpenShift Service Mesh 2 openshift-service-mesh/kiali-rhel8
    affected: workaround, no fix available “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat 3scale API Management Platform 2 3scale-amp2/system-rhel7
    affected: workaround, no fix planned “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat Ansible Automation Platform 2 automation-controller, ansible-automation-platform-25/lightspeed-rhel8 Red Hat build of Apache Camel - HawtIO 4 io.hawt-project Red Hat build of Apicurio Registry 2 io.apicurio-apicurio-registry
    affected: workaround, no fix available “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat build of OptaPlanner 8 org.optaweb.vehiclerouting-optaweb-vehicle-routing
    affected: workaround, no fix planned “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat Connectivity Link 1 rhcl-1/rhcl-console-plugin-rhel9
    affected: workaround, no fix available “Red Hat Product Security does not have any mitigation recommendations at this time.”
show 22 more
  • Red Hat Data Grid 8 org.infinispan-infinispan-console Red Hat Enterprise Linux 8 grafana, grafana-loki, grafana-mssql, grafana-mysql, grafana-selinux, grafana-graphite, +8 more Red Hat Fuse 7 io.apicurio-apicurito, io.syndesis-syndesis-ui, io.syndesis-syndesis-parent Red Hat Integration Camel K 1 io.apicurio-apicurio-registry
    affected: workaround, no fix planned “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat JBoss Data Grid 7 org.infinispan-infinispan-management-console
    affected: workaround, no fix available “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat OpenShift AI (RHOAI) odh-operator-container, odh-dashboard-container Red Hat OpenShift Container Platform 4 openshift4/ose-console, openshift4/ose-monitoring-plugin-rhel9, openshift4/nmstate-console-plugin-rhel9, openshift4/ose-networking-console-plugin-rhel9 Red Hat OpenShift Data Science (RHODS) rhods/odh-rhel8-operator, rhods/odh-dashboard-rhel8
    affected: workaround, no fix planned “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat OpenShift distributed tracing 3 rhosdt/jaeger-ingester-rhel8, rhosdt/jaeger-collector-rhel8, rhosdt/jaeger-all-in-one-rhel8, rhosdt/jaeger-es-rollover-rhel8, rhosdt/tempo-jaeger-query-rhel8, rhosdt/jaeger-es-index-cleaner-rhel8 Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/argo-rollouts-rhel8, openshift-gitops-1/console-plugin-rhel8, openshift-gitops-argocd-rhel9-container
    affected: workaround, no fix available, no fix planned “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat OpenShift Virtualization 4 container-native-virtualization/kubevirt-console-plugin, container-native-virtualization/kubevirt-console-plugin-rhel9
    affected: workaround, no fix planned “Red Hat Product Security does not have any mitigation recommendations at this time.”
  • Red Hat Discovery 1 for RHEL 9 discovery/discovery-ui-rhel9 1.12.0-1, discovery/discovery-server-rhel9 1.12.0-1
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:1249
  • Red Hat Developer Hub (RHDH) 1.4 rhdh 1.4-1734106454
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHBA-2024:11265
  • Red Hat Developer Hub 1.3 for RHEL 9 rhdh/rhdh-hub-rhel9 1.3-124
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHBA-2024:9054
  • Red Hat Migration Toolkit 1.8 rhmtc/openshift-migration-ui-rhel8 v1.8.7-2
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:8510
  • Red Hat OpenShift distributed tracing 3.4 rhosdt
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2024:10917
  • Red Hat OpenShift Pipelines 1.16 openshift-pipelines v1.16.4-1747979846
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:8512
  • Red Hat OpenShift Pipelines 1.17 openshift-pipelines v1.17.2-1750066936
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:9294
  • Red Hat OpenShift Pipelines 1.18.0 openshift-pipelines v1.18.1-1747673297
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:8233
  • Red Hat OpenShift Pipelines 1.19 openshift-pipelines v1.19.0-1751423830, openshift-pipelines v1.19.0-1752127853
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:10853
  • Red Hat Trusted Profile Analyzer 1.2 rhtpa 1.2.1-1733575106, rhtpa 1.2.1-1733826968
    fixed: fixed in 1.2.1 “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2024:11256
  • Red Hat RHACS 4.5 for RHEL 8 advanced-cluster-security/rhacs-main-rhel8 4.5.9-1, advanced-cluster-security/rhacs-roxctl-rhel8 4.5.9-1, advanced-cluster-security/rhacs-scanner-rhel8 4.5.9-1, advanced-cluster-security/rhacs-rhel8-operator 4.5.9-1, advanced-cluster-security/rhacs-collector-rhel8 4.5.9-1, advanced-cluster-security/rhacs-operator-bundle 4.5.9-1, +7 more
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:3928
  • Red Hat RHACS 4.6 for RHEL 8 advanced-cluster-security/rhacs-main-rhel8 4.6.5-1, advanced-cluster-security/rhacs-roxctl-rhel8 4.6.5-1, advanced-cluster-security/rhacs-scanner-rhel8 4.6.5-1, advanced-cluster-security/rhacs-rhel8-operator 4.6.5-1, advanced-cluster-security/rhacs-collector-rhel8 4.6.5-1, advanced-cluster-security/rhacs-operator-bundle 4.6.5-1, +7 more
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:3929
  • Red Hat RHACS 4.7 for RHEL 8 advanced-cluster-security/rhacs-main-rhel8 4.7.2-3, advanced-cluster-security/rhacs-roxctl-rhel8 4.7.2-1, advanced-cluster-security/rhacs-scanner-rhel8 4.7.2-2, advanced-cluster-security/rhacs-rhel8-operator 4.7.2-1, advanced-cluster-security/rhacs-collector-rhel8 4.7.2-2, advanced-cluster-security/rhacs-operator-bundle 4.7.2-4, +6 more
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:3930
  • Red Hat RHODF 4.14 for RHEL 9 odf4/odf-console-rhel9 v4.14.18-3, odf4/ocs-client-console-rhel9 v4.14.18-2, odf4/odf-multicluster-console-rhel9 v4.14.18-2
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:8551
  • Red Hat RHODF 4.15 for RHEL 9 odf4/odf-console-rhel9 v4.15.14-2, odf4/ocs-client-console-rhel9 v4.15.14-2, odf4/odf-multicluster-console-rhel9 v4.15.14-2
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:8544
  • Red Hat RHODF 4.16 for RHEL 9 odf4/odf-console-rhel9 v4.16.10-4, odf4/ocs-client-console-rhel9 v4.16.10-4, odf4/odf-multicluster-console-rhel9 v4.16.10-3
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:8479
  • Red Hat RHODF 4.17 for RHEL 9 odf4/odf-console-rhel9 v4.17.7-2, odf4/ocs-client-console-rhel9 v4.17.7-2, odf4/odf-multicluster-console-rhel9 v4.17.7-2
    fixed: vendor fix “Red Hat Product Security does not have any mitigation recommendations at this time.” RHSA-2025:8059

3 more fixed, 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
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

1.03% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gist.github.com https://gist.github.com/mhassan1/28be67266d82a53708ed59ce5dc3c94a referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P
CNA 4.0 7.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
npm http-proxy-middleware
<2.0.7
>=3.0.0, <3.0.3
2.0.7
3.0.3

Affected products

  • n/a http-proxy-middleware
  • n/a org.webjars.npm:http-proxy-middleware
  • chimurai http-proxy-middleware

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

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.