Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2026-29063

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Published: Mar 06, 2026 | Modified: Jul 02, 2026
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
8.8 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-29063
CWEhttps://cwe.mitre.org/data/definitions/1321.html

Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), and Map.toObject() APIs. This issue has been patched in versions 3.8.3, 4.3.7, and 5.1.5.

Weakness

The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

Affected Software

NameVendorStart VersionEnd Version
ImmutableImmutable-js3.0.0 (including)3.8.3 (excluding)
ImmutableImmutable-js4.0.0 (including)4.3.7 (excluding)
ImmutableImmutable-js5.0.0 (including)5.1.5 (excluding)
Cluster Observability Operator 1.5.0RedHatcluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279*
Cluster Observability Operator 1.5.0RedHatcluster-observability-operator/logging-console-plugin-pf5-rhel9:1782840539*
Cluster Observability Operator 1.5.0RedHatcluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996*
Migration Toolkit for Virtualization 2.1RedHatmigration-toolkit-virtualization/mtv-console-plugin-rhel9:1779139872*
Migration Toolkit for Virtualization 2.9RedHatmigration-toolkit-virtualization/mtv-console-plugin-rhel9:1778927462*
Multicluster engine for Kubernetes 2.10RedHatmulticluster-engine/console-mce-rhel9:1777128790*
Multicluster engine for Kubernetes 2.11RedHatmulticluster-engine/console-mce-rhel9:1777559392*
Multicluster engine for Kubernetes 2.6RedHatmulticluster-engine/console-mce-rhel9:1776223790*
Multicluster engine for Kubernetes 2.7RedHatmulticluster-engine/console-mce-rhel9:1777306226*
Multicluster engine for Kubernetes 2.8RedHatmulticluster-engine/console-mce-rhel9:1775116156*
Multicluster engine for Kubernetes 2.9RedHatmulticluster-engine/console-mce-rhel9:1777301444*
Network Observability (NETOBSERV) 1.11.2RedHatnetwork-observability/network-observability-console-plugin-rhel9:1774431617*
Network Observability (NETOBSERV) 1.12.0RedHatnetwork-observability/network-observability-console-plugin-pf4-rhel9:1780920979*
Red Hat Advanced Cluster Management for Kubernetes 2.15RedHatrhacm2/console-rhel9:1776927126*
Red Hat Advanced Cluster Management for Kubernetes 2.16RedHatrhacm2/console-rhel9:1777559387*
Red Hat Advanced Cluster Security for Kubernetes 4.10RedHatadvanced-cluster-security/rhacs-main-rhel8:1777976489*
Red Hat Advanced Cluster Security for Kubernetes 4.8RedHatadvanced-cluster-security/rhacs-main-rhel8:1777307791*
Red Hat Advanced Cluster Security for Kubernetes 4.8RedHatadvanced-cluster-security/rhacs-main-rhel8:1777307791*
Red Hat Advanced Cluster Security for Kubernetes 4.9RedHatadvanced-cluster-security/rhacs-main-rhel8:1777986630*
Red Hat Developer Hub 1.8RedHatrhdh/rhdh-hub-rhel9:1776784286*
Red Hat Developer Hub 1.9RedHatrhdh/rhdh-hub-rhel9:1777903262*
Red Hat Discovery 2RedHatdiscovery/discovery-ui-rhel9:1775675922*
Red Hat OpenShift AI 2.25RedHatrhoai/odh-dashboard-rhel9:1780467029*
Red Hat OpenShift AI 2.25RedHatrhoai/odh-mod-arch-model-registry-rhel9:1780467147*
Red Hat OpenShift AI 3.3RedHatrhoai/odh-dashboard-rhel9:1779189627*
Red Hat OpenShift AI 3.3RedHatrhoai/odh-mod-arch-gen-ai-rhel9:1778473763*
Red Hat OpenShift AI 3.3RedHatrhoai/odh-mod-arch-model-registry-rhel9:1778666987*
Red Hat OpenShift Container Platform 4.14RedHatopenshift4/ose-console:1782157414*
Red Hat OpenShift Container Platform 4.15RedHatopenshift4/ose-console:1782127091*
Red Hat OpenShift Container Platform 4.16RedHatopenshift4/ose-monitoring-plugin-rhel9:1779262817*
Red Hat OpenShift Container Platform 4.16RedHatopenshift4/ose-networking-console-plugin-rhel9:1778615276*
Red Hat OpenShift Container Platform 4.17RedHatopenshift4/ose-networking-console-plugin-rhel9:1778517109*
Red Hat OpenShift Container Platform 4.18RedHatopenshift4/ose-networking-console-plugin-rhel9:1777459211*
Red Hat OpenShift Container Platform 4.18RedHatopenshift4/ose-monitoring-plugin-rhel9:1779874891*
Red Hat OpenShift Container Platform 4.18RedHatopenshift4/nmstate-console-plugin-rhel9:1779874967*
Red Hat OpenShift Container Platform 4.18RedHatopenshift4/ose-console-rhel9:1782259588*
Red Hat OpenShift Container Platform 4.19RedHatopenshift4/ose-networking-console-plugin-rhel9:1779256322*
Red Hat OpenShift Container Platform 4.19RedHatopenshift4/nmstate-console-plugin-rhel9:1779249920*
Red Hat OpenShift Container Platform 4.19RedHatopenshift4/ose-monitoring-plugin-rhel9:1780503846*
Red Hat OpenShift Container Platform 4.19RedHatopenshift4/ose-console-rhel9:1782171676*
Red Hat OpenShift Container Platform 4.20RedHatopenshift4/nmstate-console-plugin-rhel9:1778645008*
Red Hat OpenShift Container Platform 4.20RedHatopenshift4/ose-monitoring-plugin-rhel9:1779863939*
Red Hat OpenShift Container Platform 4.20RedHatopenshift4/ose-console-rhel9:1781688743*
Red Hat OpenShift Container Platform 4.21RedHatopenshift4/ose-monitoring-plugin-rhel9:1779266006*
Red Hat OpenShift Pipelines 1.2RedHatopenshift-pipelines/pipelines-console-plugin-rhel9:1779910201*
Red Hat OpenShift Service Mesh 2.6RedHatopenshift-service-mesh/kiali-ossmc-rhel8:1776202125*
Red Hat OpenShift Service Mesh 2.6RedHatopenshift-service-mesh/kiali-rhel8:1776191302*
Red Hat OpenShift Service Mesh 3.0RedHatopenshift-service-mesh/kiali-ossmc-rhel9:1776151124*
Red Hat OpenShift Service Mesh 3.0RedHatopenshift-service-mesh/kiali-rhel9:1776151272*
Red Hat OpenShift Service Mesh 3.1RedHatopenshift-service-mesh/kiali-ossmc-rhel9:1776151106*
Red Hat OpenShift Service Mesh 3.1RedHatopenshift-service-mesh/kiali-rhel9:1776151270*
Red Hat OpenShift Service Mesh 3.2RedHatopenshift-service-mesh/kiali-ossmc-rhel9:1776155669*
Red Hat OpenShift Service Mesh 3.2RedHatopenshift-service-mesh/kiali-rhel9:1776149682*
Red Hat OpenShift Service Mesh 3.3RedHatopenshift-service-mesh/kiali-ossmc-rhel9:1776151134*
Red Hat OpenShift Service Mesh 3.3RedHatopenshift-service-mesh/kiali-rhel9:1776151277*
Red Hat Quay 3.10RedHatquay/quay-rhel8:1776736910*
Red Hat Quay 3.12RedHatquay/quay-rhel8:1775253092*
Red Hat Quay 3.15RedHatquay/quay-rhel8:1775169219*
Red Hat Quay 3.16RedHatquay/quay-rhel9:1779204086*
Red Hat Quay 3.17RedHatquay/quay-rhel9:1779922205*
Red Hat Quay 3.9RedHatquay/quay-rhel8:1775169218*
Red Hat Satellite 6.18RedHatsatellite/iop-vulnerability-frontend-rhel9:1781032495*
Red Hat Satellite 6.18RedHatsatellite/iop-host-inventory-frontend-rhel9:1780105179*
Node-immutableUbuntuupstream*

Potential Mitigations

References

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