CVE-2026-29063

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.

CVE-2026-29063

Immutable.js provides many Persistent Immutable data structures. Prior ...

GHSA-wf6x-7x77-mvgw

Immutable is vulnerable to Prototype Pollution