9.8

CVE-2026-29063

Medienbericht
Exploit

Immutable.js: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in immutable

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Immutable-js ≫ Immutable SwPlatformnode.js Version >= 3.0.0 < 3.8.3
Immutable-js ≫ Immutable SwPlatformnode.js Version >= 4.0.0 < 4.3.7
Immutable-js ≫ Immutable SwPlatformnode.js Version >= 5.0.0 < 5.1.5
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.61% 0.445
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
security-advisories@github.com 8.7 0 0
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
CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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.

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VulnDex Intel
Media Report
26.03.2026 13:54
https://github.com/immutable-js/immutable-js/security/advisories/GHSA-wf6x-7x77-mvgw
Vendor Advisory
Exploit
https://github.com/immutable-js/immutable-js/releases/tag/v3.8.3
Release Notes
https://github.com/immutable-js/immutable-js/releases/tag/v4.3.8
Release Notes
https://github.com/immutable-js/immutable-js/releases/tag/v5.1.5
Release Notes