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CVE-2026-29063

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CVE-2026-29063

Published: Mar 6, 2026

Modified: Mar 6, 2026

PUBLISHED

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.

VendorProductVersions

immutable-js

immutable-js

affected
< 3.8.3
affected
< 4.3.7
affected
< 5.1.5

Weaknesses (CWE)

CWE-1321

References

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