CVE-2026-29063
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.
Published:Mar 6, 2026
Last Modified:Oct 30, 2026
EPS:Mar 6, 2026
EPSS Score:0.01015
CVSS Score:9.8
Affected Products
Vendor
Product
Action
Vendor
Immutable-js
Product
Immutable
Immutable-js
Immutable
Vendor
Immutable-js
Product
Immutable-js
Immutable-js
Immutable-js
Vendor
Redhat
Product
3scale Api Management Platform
Redhat
3scale Api Management Platform
Vendor
Redhat
Product
Advanced Cluster Management For Kubernetes
Redhat
Advanced Cluster Management For Kubernetes
Vendor
Redhat
Product
Advanced Cluster Security
Redhat
Advanced Cluster Security
Vendor
Redhat
Product
Ansible Automation Platform
Redhat
Ansible Automation Platform
Vendor
Redhat
Product
Build Of Apicurio Registry
Redhat
Build Of Apicurio Registry
Vendor
Redhat
Product
Connectivity Link
Redhat
Connectivity Link
Vendor
Redhat
Product
Developer Hub
Redhat
Developer Hub
Vendor
Redhat
Product
Discovery
Redhat
Discovery
Vendor
Redhat
Product
Edge Manager
Redhat
Edge Manager
Vendor
Redhat
Product
Enterprise Linux
Redhat
Enterprise Linux
Vendor
Redhat
Product
Logging Subsystem For Red Hat Openshift
Redhat
Logging Subsystem For Red Hat Openshift
Vendor
Redhat
Product
Migration Toolkit
Redhat
Migration Toolkit
Vendor
Redhat
Product
Migration Toolkit For Virtualization
Redhat
Migration Toolkit For Virtualization
Vendor
Redhat
Product
Multicluster Engine For Kubernetes
Redhat
Multicluster Engine For Kubernetes
Vendor
Redhat
Product
Network Observability Operator
Redhat
Network Observability Operator
Vendor
Redhat
Product
Openshift Cluster Observability Operator
Redhat
Openshift Cluster Observability Operator
Vendor
Redhat
Product
Openshift Container Platform
Redhat
Openshift Container Platform
Vendor
Redhat
Product
Openshift Data Foundation
Redhat
Openshift Data Foundation
Vendor
Redhat
Product
Openshift Gitops
Redhat
Openshift Gitops
Vendor
Redhat
Product
Openshift Lightspeed
Redhat
Openshift Lightspeed
Vendor
Redhat
Product
Openshift Pipelines
Redhat
Openshift Pipelines
Vendor
Redhat
Product
Openshift Service Mesh
Redhat
Openshift Service Mesh
Vendor
Redhat
Product
Openshift Virtualization
Redhat
Openshift Virtualization
Vendor
Redhat
Product
Quay
Redhat
Quay
Vendor
Redhat
Product
Satellite
Redhat
Satellite
Vendor
Redhat
Product
Self-service Automation Portal
Redhat
Self-service Automation Portal
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
