DEBIAN-CVE-2026-59879

Immutable.js provides many Persistent Immutable data structures. Prior to 4.3.9 and 5.1.8, Listset, ListsetSize, ListsetIn, ListupdateIn, and the functional set, setIn, and updateIn mishandle an index or size in the range 2 30 to 2 31 in setListBounds in src/List.js, causing an empty List to ente...

PT-2026-56499

Name of the Vulnerable Software and Affected Versions Immutable.js versions prior to 4.3.9 Immutable.js versions prior to 5.1.8 Description Immutable.Map and Immutable.Set store keys with identical 32-bit hashes in a HashCollisionNode collision bucket that is scanned linearly. An attacker capable...

Security Bulletin: Vulnerability in Immutable.js affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.

Summary Potential vulnerability in Immutable.js has been identified that affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component. . The vulnerability have been addressed. Refer to details for additional information...

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

CVE-2026-29063 affects Immutable.js, where prototype pollution is possible via mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), and Map.toObject() APIs in versions prior to 3.8.3, 4.3.7, and 5.1.5. IBM security bulletins corroborate the issue and list affected IBM products (e.g., Cloud Pak for ...