immutable-js immutable vulnerabilities (CVE)

CVE records published for immutable-js immutable, newest first. Follow to get an email when a new one appears.

3 results
8.7High
CVE-2026-59879

Immutable.js `List` 32-bit trie overflow → unrecoverable DoS

immutable-js immutable-js

Immutable.js provides many Persistent Immutable data structures. Prior to 4.3.9 and 5.1.8, List#set, List#setSize, List#setIn, List#updateIn, and the functional set, setIn, and updateIn mishandle an index or size in the range 2 ** 30 to 2 ** 31 in setListBoun…

8.7High
CVE-2026-29063

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

immutable-js immutable-js; Red Hat Cluster Observability Operator 1.5.0; Red Hat Migration Toolkit for Virtualization 2.1; Red Hat Migration Toolkit for Virtualization 2.9

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 pa…