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CVE-2026-29063

Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5,…

CVSS 4.0 · [email protected] · Secondary 8.7 HIGHCVSS 3.1 · [email protected] · Primary 9.8 CRITICALCVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary 8.8 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 31 Oct 2026 08:35:57 UTC. Read the latest advisory.

nvd · CVE-2026-29063

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

nvd · CVE-2026-29063

Published

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. Thi…

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.

Additional publisher context

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-1321 · CWE-915

Original publisher date fields

published: 2026-03-06T19:16:21.557

lastModified: 2026-10-30T13:16:36.640

40 source CPE criteria · context only
  • cpe:2.3:a:immutable-js:immutable:*:*:*:*:*:node.js:*:*
  • cpe:2.3:a:redhat:3scale_api_management_platform:2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:advanced_cluster_management_for_kubernetes:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:advanced_cluster_security:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:advanced_cluster_security:*:*:*:*:*:kubernetes:*:*
  • cpe:2.3:a:redhat:ansible_automation_platform:2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:build_of_apicurio_registry:2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:connectivity_link:1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:developer_hub:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:discovery:2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:edge_manager:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:logging_subsystem_for_red_hat_openshift:-:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:migration_toolkit:1.8:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:migration_toolkit_for_virtualization:2.9.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:migration_toolkit_for_virtualization:2.10.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:multicluster_engine_for_kubernetes:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:network_observability_operator:1.11.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:network_observability_operator:1.12.3:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_cluster_observability_operator:1.5.3:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_data_foundation:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_data_foundation:4.17:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_gitops:-:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_lightspeed:-:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_pipelines:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_service_mesh:2.6:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_service_mesh:3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_service_mesh:3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_service_mesh:3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_service_mesh:3.3:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_virtualization:4:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:quay:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:quay:3.18.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:satellite:6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:satellite:6.18:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:self-service_automation_portal:2.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published
6 Mar 2026 19:16:21 UTC
Source modified
30 Oct 2026 13:16:36 UTC
Saved here
31 Oct 2026 08:35:57 UTC
Source terms
NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · [email protected] · Secondary · 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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

CVSS 3.1 · [email protected] · Primary · 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary · 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

ChangeIntel

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Sources read 15 Nov 12:11 UTC · 256 of 275 readable · 252 fully read · documentation 469/469 current

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