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Fencer Vulns
high 7.4

CVE-2024-29180 json

webpack-dev-middleware Path Traversal vulnerability

published 2024-03-21 2 y ago modified 2026-10-03 37 d ago also GHSA-wr3j-pwj9-hqq6 , EUVD-2024-1028

cvss
7.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

Prior to versions 7.1.0, 6.1.2, and 5.3.4, the webpack-dev-middleware development middleware for devpack does not validate the supplied URL address sufficiently before returning the local file. It is possible to access any file on the developer's machine. The middleware can either work with the physical filesystem when reading the files or it can use a virtualized in-memory `memfs` filesystem. If `writeToDisk` configuration option is set to `true`, the physical filesystem is used. The `getFilenameFromUrl` method is used to parse URL and build the local file path. The public path prefix is stripped from the URL, and the `unsecaped` path suffix is appended to the `outputPath`. As the URL is not unescaped and normalized automatically before calling the midlleware, it is possible to use `%2e` and `%2f` sequences to perform path traversal attack.

Developers using `webpack-dev-server` or `webpack-dev-middleware` are affected by the issue. When the project is started, an attacker might access any file on the developer's machine and exfiltrate the content. If the development server is listening on a public IP address (or `0.0.0.0`), an attacker on the local network can access the local files without any interaction from the victim (direct connection to the port). If the server allows access from third-party domains, an attacker can send a malicious link to the victim. When visited, the client side script can connect to the local server and exfiltrate the local files. Starting with fixed versions 7.1.0, 6.1.2, and 5.3.4, the URL is unescaped and normalized before any further processing.

Patch / fix

  • npm webpack-dev-middleware 5.3.4, 6.1.2, 7.1.0
  • webpack.js webpack-dev-middleware 5.3.4, 6.1.2, 7.1.0

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-2024-29180 updated cvss 7.4

webpack-dev-middleware: lack of URL validation may lead to file leak

  • Red Hat Migration Toolkit for Virtualization migration-toolkit-virtualization/mtv-console-plugin-rhel9
    affected: workaround, no fix available
  • Red Hat Node HealthCheck Operator workload-availability/node-remediation-console-rhel8
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift Serverless devspaces/code-rhel9
    affected: workaround, no fix available
  • Red Hat 3scale API Management Platform 2 3scale-amp2/system-rhel7
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Advanced Cluster Security 3 advanced-cluster-security/rhacs-main-rhel8
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat build of OptaPlanner 8 devspaces/code-rhel9 Red Hat Developer Hub 1 rhdh/rhdh-hub-rhel9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 6 firefox, thunderbird
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Integration Camel K 1 devspaces/code-rhel9 Red Hat OpenShift Container Platform 4 openshift4/ose-console
    affected: workaround, no fix planned “Will not fix”
show 22 more
  • Red Hat OpenShift Dev Spaces devspaces/traefik-rhel8
    affected: workaround, no fix available
  • Red Hat Process Automation 7 devspaces/code-rhel9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Quay 3 quay/quay-rhel8
    affected: workaround, no fix available
  • Red Hat Migration Toolkit for Runtimes 1 on RHEL 8
    fixed: vendor fix RHSA-2024:3920
  • Red Hat MTA 6.2 for RHEL 8 mta/mta-ui-rhel9 6.2.3-2, mta/mta-windup-addon-rhel9 6.2.3-2
    fixed: vendor fix RHSA-2024:3989
  • 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 NETOBSERV 1.6 for RHEL 9 network-observability/network-observability-cli-rhel9 v1.6.0-66, network-observability/network-observability-operator-bundle 1.6.0-78, network-observability/network-observability-rhel9-operator v1.6.0-66, network-observability/network-observability-ebpf-agent-rhel9 v1.6.0-66, network-observability/network-observability-console-plugin-rhel9 v1.6.0-66, network-observability/network-observability-flowlogs-pipeline-rhel9 v1.6.0-66
    fixed: vendor fix RHSA-2024:3868
  • Red Hat OpenShift Pipelines version 1.16 for RHEL 8 openshift-pipelines/pipelines-nop-rhel8 v1.16.0-7, openshift-pipelines/pipelines-events-rhel8 v1.16.0-7, openshift-pipelines/pipelines-hub-ui-rhel8 v1.16.0-3, openshift-pipelines/pipelines-cli-tkn-rhel8 v1.16.0-7, openshift-pipelines/pipelines-hub-api-rhel8 v1.16.0-3, openshift-pipelines/pipelines-webhook-rhel8 v1.16.0-7, +22 more
    fixed: vendor fix RHEA-2024:7870
  • Red Hat build of Apicurio Registry 2.6.1 GA
    fixed: vendor fix RHSA-2024:4873
  • Red Hat Data Grid
    fixed: vendor fix RHSA-2024:4460
  • Red Hat Discovery 2 discovery/discovery-ui-rhel9 1788206196
    fixed: vendor fix RHSA-2026:61783
  • Red Hat Migration Toolkit 1.7 rhmtc/openshift-migration-ui-rhel8 v1.7.16-6
    fixed: vendor fix RHSA-2024:4520
  • Red Hat Migration Toolkit 1.8 rhmtc/openshift-migration-controller-rhel8 v1.8.4-22
    fixed: vendor fix RHSA-2024:7164
  • Red Hat OpenShift Container Platform 4.16 openshift4/ose-monitoring-plugin-rhel9 v4.16.0-202406140306.p0.gf1fc431.assembly.stream.el9
    fixed: vendor fix RHSA-2024:0041
  • Red Hat OpenShift GitOps 1.10 openshift-gitops-1/dex-rhel8 v1.10.5-6, openshift-gitops-1/argocd-rhel8 v1.10.5-6, openshift-gitops-1/gitops-rhel8 v1.10.5-6, openshift-gitops-1/must-gather-rhel8 v1.10.5-6, openshift-gitops-1/kam-delivery-rhel8 v1.10.5-6, openshift-gitops-1/argo-rollouts-rhel8 v1.10.5-6, +3 more
    fixed: vendor fix RHSA-2024:2817
  • Red Hat OpenShift GitOps 1.11 openshift-gitops-1/dex-rhel8 v1.11.4-7, openshift-gitops-1/argocd-rhel8 v1.11.4-7, openshift-gitops-1/gitops-rhel8 v1.11.4-7, openshift-gitops-1/must-gather-rhel8 v1.11.4-7, openshift-gitops-1/kam-delivery-rhel8 v1.11.4-7, openshift-gitops-1/argo-rollouts-rhel8 v1.11.4-7, +3 more
    fixed: vendor fix RHSA-2024:2815
  • Red Hat OpenShift GitOps 1.12 openshift-gitops-1/dex-rhel8 v1.12.2-1, openshift-gitops-1/argocd-rhel8 v1.12.2-1, openshift-gitops-1/gitops-rhel8 v1.12.2-1, openshift-gitops-1/must-gather-rhel8 v1.12.2-1, openshift-gitops-1/kam-delivery-rhel8 v1.12.2-1, openshift-gitops-1/argo-rollouts-rhel8 v1.12.2-1, +3 more
    fixed: vendor fix RHSA-2024:2816
  • Red Hat RHACS 4.4 for RHEL 8 advanced-cluster-security/rhacs-main-rhel8 4.4.2-6, advanced-cluster-security/rhacs-roxctl-rhel8 4.4.2-4, advanced-cluster-security/rhacs-scanner-rhel8 4.4.2-4, advanced-cluster-security/rhacs-rhel8-operator 4.4.2-4, advanced-cluster-security/rhacs-collector-rhel8 4.4.2-4, advanced-cluster-security/rhacs-operator-bundle 4.4.2-6, +7 more
    fixed: vendor fix RHSA-2024:2941
  • Red Hat RHODF 4.14 for RHEL 9 odf4/odf-console-rhel9 v4.14.18-3
    fixed: vendor fix RHSA-2025:8551
  • Red Hat RHODF 4.15 for RHEL 9 odf4/odf-console-rhel9 v4.15.14-2
    fixed: vendor fix RHSA-2025:8544
  • Red Hat RHODF 4.16 for RHEL 9 odf4/odf-console-rhel9 v4.16.2-2
    fixed: vendor fix RHSA-2024:6755
  • Red Hat Cryostat 2 devspaces/code-rhel9 Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/kibana6-rhel8, openshift-logging/logging-view-plugin-rhel9 Red Hat Migration Toolkit for Applications 6 webpack-dev-middleware Red Hat MTA 6.2 for RHEL 8 mta/mta-hub-rhel9 6.2.3-1, mta/mta-rhel8-operator 6.2.3-1, mta/mta-operator-bundle 6.2.3-4, mta/mta-pathfinder-rhel9 6.2.3-1 Red Hat MTA 7.0 for RHEL 8 mta/mta-rhel8-operator 7.0.3-7 Red Hat MTA 7.0 for RHEL 9 mta/mta-hub-rhel9 7.0.3-10, mta/mta-operator-bundle 7.0.3-25, mta/mta-windup-shim-rhel9 7.0.3-12, mta/mta-analyzer-lsp-rhel9 7.0.3-13, mta/mta-analyzer-addon-rhel9 7.0.3-13
    +3 more products
    Red Hat Multicluster Engine for Kubernetes multicluster-engine/multicluster-engine-console-mce-rhel9 Red Hat OpenShift Service Mesh 2 openshift-service-mesh/kiali-rhel9 Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/console-rhel8
    not affected: vulnerable code not present

17 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

1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/webpack/webpack-dev-middleware/security/advisories/GHSA-wr3j-pwj9-hqq6 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
GitHub 3.1 7.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
npm webpack-dev-middleware
>=7.0.0, <7.1.0
>=6.0.0, <6.1.2
<5.3.4
7.1.0
6.1.2
5.3.4

Affected products

  • webpack webpack-dev-middleware
  • webpack.js webpack-dev-middleware

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.