Skip to content
Fencer Vulns
high 7.4

CVE-2026-42044 json

Axios: Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver`

published 2026-04-24 6 mo ago modified 2026-09-10 1 mo ago also EUVD-2026-25609 , GHSA-3w6x-2g7m-8v23

cvss
7.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.15.2, he Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into surgical, invisible modification of all JSON API responses — including privilege escalation, balance manipulation, and authorization bypass. The default transformResponse function at lib/defaults/index.js:124 calls JSON.parse(data, this.parseReviver), where this is the merged config object. Because parseReviver is not present in Axios defaults, not validated by assertOptions, and not subject to any constraints, a polluted Object.prototype.parseReviver function is called for every key-value pair in every JSON response, allowing the attacker to selectively modify individual values while leaving the rest of the response intact. This vulnerability is fixed in 1.15.2.

Patch / fix

  • npm axios 1.15.2
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8 0:2.5.20260715-1.el8ap
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9 0:2.5.20260715-1.el9ap
  • Red Hat multicluster engine for Kubernetes 2.1 1780917531
  • Red Hat multicluster engine for Kubernetes 2.11 1780910888
  • Red Hat multicluster engine for Kubernetes 2.6 1778511348
  • Red Hat multicluster engine for Kubernetes 2.8 1778383863
  • Red Hat multicluster engine for Kubernetes 2.9 1778532610
  • Red Hat Network Observability (NETOBSERV) 1.12.2 1780556069, 1780920979
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 1783451729
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 1780876734
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1780600823
  • Red Hat Red Hat Advanced Cluster Security 4.9 1779371594
  • Red Hat Red Hat Advanced Cluster Security for Kubernetes 4.10 1779293013
  • Red Hat Red Hat Container Native Virtualization 4.15 1782917983
  • Red Hat Red Hat Developer Hub 1.8 1779841586
  • Red Hat Red Hat Developer Hub 1.9 1782761244
  • Red Hat Red Hat Discovery 2 1779395188
  • Red Hat Red Hat Migration Toolkit 1.8 1780590717
  • Red Hat Red Hat Migration Toolkit for Applications 8.1 1785169013
  • Red Hat Red Hat OpenShift Dev Spaces 3.28 1779341289, 1779814592
  • Red Hat Red Hat OpenShift Service Mesh 2.6 1779520348, 1779520355
  • Red Hat Red Hat OpenShift Service Mesh 3.0 1778163785, 1778164208
  • Red Hat Red Hat OpenShift Service Mesh 3.1 1778163935, 1778164042
  • Red Hat Red Hat OpenShift Service Mesh 3.2 1778163792, 1778163909
  • Red Hat Red Hat OpenShift Service Mesh 3.3 1778163785, 1778163986
  • Red Hat Red Hat Quay 3.10 1779822261
  • Red Hat Red Hat Quay 3.12 1779811412
  • Red Hat Red Hat Quay 3.14 1779689392
  • Red Hat Red Hat Quay 3.15 1780891395
  • node-axios Debian 14 1.15.2-1

debian advisories DEBIAN-CVE-2026-42044

  • node-axios Ubuntu Pro 26.04 LTS 1.13.2+dfsg-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2026-42044

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

  • receptor ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.6-1.el8ap
  • receptor ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.6-1.el9ap
  • receptorctl ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.6-1.el8ap
  • receptorctl ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1.6.6-1.el9ap
  • ansible-core ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1:2.16.19-1.el8ap
  • ansible-core ansible automation platform inside 2.5, ansible automation platform developer 2.5, ansible automation platform 2.5 1:2.16.19-1.el9ap
  • ansible-test ansible automation platform 2.5 1:2.16.19-1.el8ap
  • ansible-test ansible automation platform 2.5 1:2.16.19-1.el9ap

red hat advisories RHSA-2026:42078

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-2026-42044 updated cvss 7.4

axios: Axios: Invisible JSON Response Tampering via Prototype Pollution Gadget

  • Red Hat Gatekeeper 3 gatekeeper/gatekeeper-rhel9
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Migration Toolkit for Applications 8 mta/mta-ui-rhel8 Red Hat Network Observability Operator network-observability/network-observability-console-plugin-compat-rhel9 Red Hat OpenShift Pipelines openshift-pipelines/pipelines-hub-ui-rhel8, openshift-pipelines/pipelines-hub-ui-rhel9
    affected: workaround, no fix available
  • Red Hat 3scale API Management Platform 2 3scale-amp2/system-rhel8, 3scale-amp2/system-rhel9 Red Hat Ansible Automation Platform 2 automation-hub, automation-controller, automation-platform-ui, ansible-automation-platform-26/gateway-rhel9, ansible-automation-platform/automation-dashboard-rhel9
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat build of Apicurio Registry 2 axios
    affected: workaround, no fix planned “Will not fix”
  • Red Hat build of Apicurio Registry 3 apicurio/apicurio-registry-ui-rhel8, apicurio/apicurio-registry-ui-rhel9
    affected: workaround, no fix available
  • Red Hat Build of Podman Desktop - Tech Preview rhdesktop/rh-podman-desktop-ext-openshift-local-rhel10 Red Hat Developer Hub 1 rhdh/backstage-community-plugin-catalog-backend-module-scaffolder-relation-processor Red Hat Enterprise Linux 8 grafana, grafana-loki, grafana-mssql, grafana-mysql, grafana-selinux, grafana-graphite, +8 more
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/bootc-rocm-rhel9, rhelai3/disk-image-cuda-rhel9 Red Hat OpenShift AI (RHOAI) rhoai/odh-dashboard-rhel9, rhoai/odh-mod-arch-maas-rhel9, rhoai/odh-mod-arch-gen-ai-rhel9, rhoai/odh-mod-arch-model-registry-rhel9 Red Hat OpenShift Container Platform 4 openshift3/ose-console, openshift4/ose-monitoring-plugin-rhel9, openshift4/ose-agent-installer-ui-rhel9 Red Hat OpenShift Virtualization 4 container-native-virtualization/kubevirt-console-plugin Red Hat Trusted Profile Analyzer rhtpa/rhtpa-trustification-service-rhel9 Red Hat Self-service automation portal 2 ansible-automation-platform/automation-portal
    affected: workaround, no fix available
  • Red Hat HawtIO HawtIO 4.4.0
    fixed: vendor fix RHSA-2026:25089
show 21 more
  • Red Hat multicluster engine for Kubernetes 2.6 multicluster-engine 1778511348
    fixed: vendor fix RHSA-2026:17657
  • Red Hat multicluster engine for Kubernetes 2.8 multicluster-engine 1778383863
    fixed: vendor fix RHSA-2026:17699
  • Red Hat multicluster engine for Kubernetes 2.9 multicluster-engine 1778532610
    fixed: vendor fix RHSA-2026:19109
  • Red Hat multicluster engine for Kubernetes 2.10 multicluster-engine/console-mce-rhel9 1780917531
    fixed: vendor fix RHSA-2026:24536
  • Red Hat multicluster engine for Kubernetes 2.11 multicluster-engine/console-mce-rhel9 1780910888
    fixed: vendor fix RHSA-2026:25271
  • Red Hat Network Observability (NETOBSERV) 1.12.3 network-observability/network-observability-console-plugin-rhel9 1780556069, network-observability/network-observability-console-plugin-pf4-rhel9 1780920979
    fixed: vendor fix RHSA-2026:24473
  • Red Hat Advanced Cluster Management for Kubernetes 2.14 rhacm2/console-rhel9 1783451729
    fixed: vendor fix RHSA-2026:36882
  • Red Hat Advanced Cluster Management for Kubernetes 2.15 rhacm2/console-rhel9 1780876734
    fixed: vendor fix RHSA-2026:24539
  • Red Hat Advanced Cluster Management for Kubernetes 2.16 rhacm2/console-rhel9 1780600823
    fixed: vendor fix RHSA-2026:25273
  • Red Hat Advanced Cluster Security 4.9 advanced-cluster-security/rhacs-main-rhel8 1779371594
    fixed: vendor fix RHSA-2026:20938
  • Red Hat Advanced Cluster Security for Kubernetes for IBM Power, little endian 4.10 advanced-cluster-security 1779293013
    fixed: vendor fix RHSA-2026:20889
  • Red Hat Ansible Automation Platform 2.5 for RHEL 8 automation-gateway-server 2.5.20260715-1.el8ap Red Hat Ansible Automation Platform 2.5 for RHEL 9 automation-gateway-server 2.5.20260715-1.el9ap
    fixed: vendor fix RHSA-2026:42078
  • Red Hat Ceph Storage 9.2 rhceph/rhceph-9-rhel10 1790843527
    fixed: vendor fix RHSA-2026:86618
  • Red Hat Container Native Virtualization 4.15 container-native-virtualization/kubevirt-console-plugin-rhel9 1782917983
    fixed: vendor fix RHSA-2026:36107
  • Red Hat Developer Hub 1.8 rhdh/rhdh-hub-rhel9 1779841586
    fixed: vendor fix RHSA-2026:21338
  • Red Hat Developer Hub 1.9 rhdh/rhdh-hub-rhel9 1782761244
    fixed: vendor fix RHSA-2026:33574
  • Red Hat Discovery 2 discovery 1779395188
    fixed: vendor fix RHSA-2026:20338
  • Red Hat Migration Toolkit 1.8 rhmtc/openshift-migration-ui-rhel8 1780590717
    fixed: vendor fix RHSA-2026:25041
  • Red Hat Migration Toolkit for Applications 8.1 mta/mta-ui-rhel9 1785169013
    fixed: vendor fix RHSA-2026:50300
  • Red Hat OpenShift Dev Spaces 3.28 devspaces/code-rhel9 1779814592, devspaces/dashboard-rhel9 1779341289
    fixed: vendor fix RHSA-2026:21772
  • Red Hat OpenShift Service Mesh 2.6 openshift-service-mesh 1779520348, openshift-service-mesh 1779520355
    fixed: vendor fix RHSA-2026:20454

14 more fixed, 41 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
6 mo ago

Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/axios/axios/security/advisories/GHSA-3w6x-2g7m-8v23 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
CISA ADP 3.1 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CNA 3.1 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
npm axios
>=1.0.0, <1.15.2
1.15.2

Affected products

  • axios axios
  • Red Hat HawtIO HawtIO 4.4.0
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8
  • Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9
  • Red Hat Streams for Apache Kafka 2.9.4
  • Red Hat multicluster engine for Kubernetes 2.1
  • Red Hat multicluster engine for Kubernetes 2.11
  • Red Hat multicluster engine for Kubernetes 2.6
  • Red Hat multicluster engine for Kubernetes 2.8
  • Red Hat multicluster engine for Kubernetes 2.9
  • Red Hat Network Observability (NETOBSERV) 1.12.2
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16
  • Red Hat Red Hat Advanced Cluster Security 4.9
  • Red Hat Red Hat Advanced Cluster Security for Kubernetes 4.10
  • Red Hat Red Hat Container Native Virtualization 4.15
  • Red Hat Red Hat Developer Hub 1.8
  • Red Hat Red Hat Developer Hub 1.9
  • Red Hat Red Hat Discovery 2
  • Red Hat Red Hat Migration Toolkit 1.8
  • Red Hat Red Hat Migration Toolkit for Applications 8.1
  • Red Hat Red Hat OpenShift Dev Spaces 3.28
  • Red Hat Red Hat OpenShift Service Mesh 2.6
  • Red Hat Red Hat OpenShift Service Mesh 3.0
  • Red Hat Red Hat OpenShift Service Mesh 3.1
  • Red Hat Red Hat OpenShift Service Mesh 3.2
  • Red Hat Red Hat OpenShift Service Mesh 3.3
  • Red Hat Red Hat Quay 3.10
  • Red Hat Red Hat Quay 3.12
  • Red Hat Red Hat Quay 3.14
  • Red Hat Red Hat Quay 3.15
  • Red Hat Red Hat Quay 3.16
  • Red Hat Red Hat Quay 3.17
  • Red Hat Red Hat Quay 3.9
  • Red Hat Red Hat Satellite 6.18
  • Red Hat Red Hat Trusted Artifact Signer 1.3
  • Red Hat Cryostat 4
  • Red Hat Gatekeeper 3
  • Red Hat Migration Toolkit for Applications 8
  • Red Hat Network Observability Operator
  • Red Hat OpenShift Pipelines
  • Red Hat OpenShift Service Mesh 3
  • Red Hat Red Hat 3scale API Management Platform 2
  • Red Hat Red Hat Ansible Automation Platform 2
  • Red Hat Red Hat build of Apicurio Registry 2
  • Red Hat Red Hat build of Apicurio Registry 3
  • Red Hat Red Hat Build of Podman Desktop - Tech Preview
  • Red Hat Red Hat Data Grid 8
  • Red Hat Red Hat Developer Hub

Classification

Weakness
  • CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes
  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes

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.