Description

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.

INFO

Published Date :

2026-03-06T18:25:22.438Z

Last Modified :

2026-03-06T19:33:31.642Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-29063 vulnerability.

Vendors Products
Immutable-js
  • Immutable
  • Immutable-js
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-29063.

URL Resource
https://github.com/immutable-js/immutable-js/releases/tag/v3.8.3 cve-icon cve-icon cve-icon
https://github.com/immutable-js/immutable-js/releases/tag/v4.3.8 cve-icon cve-icon cve-icon
https://github.com/immutable-js/immutable-js/releases/tag/v5.1.5 cve-icon cve-icon cve-icon
https://github.com/immutable-js/immutable-js/security/advisories/GHSA-wf6x-7x77-mvgw cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-29063 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-29063 cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact