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Vulnerability details

8.7/10
CVSS 4.0
CVE-2026-59880
false_positive Published 2026-07-08 Updated 2026-07-10
NVD MITRE OpenCVE
Vulnerability Data from Dependency-Track
Affected versions
Scores
8.7 CVSS 4.0 NVD CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N displayed
7.5 CVSS 3.1 NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
Immutable.js provides many Persistent Immutable data structures. Prior to 4.3.9 and 5.1.8, Immutable.Map and Immutable.Set keep keys that share the same 32-bit hash in a HashCollisionNode collision bucket that is scanned linearly, allowing an attacker who controls keys inserted into a Map, such as through Immutable.Map(obj), Immutable.fromJS(obj), state.merge(userObject), or mergeDeep, to craft many colliding keys and degrade insertion and lookup to consume disproportionate CPU. This issue is fixed in versions 4.3.9 and 5.1.8.
Same vulnerability as
GHSA-xvcm-6775-5m9r false_positive according to EUVD-2026-42315
Analysis Read only
The analysis can only be edited by the BlueMind security teams: log in.

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