8.7

CVE-2026-59880

Exploit

Immutable.js: Hash-collision algorithmic complexity denial of service in Immutable.Map/Set

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Immutable-js ≫ Immutable SwPlatformnode.js Version < 4.3.9
Immutable-js ≫ Immutable SwPlatformnode.js Version >= 5.0.0 < 5.1.8
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.43% 0.353
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
security-advisories@github.com 8.7 0 0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-407 Inefficient Algorithmic Complexity

An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.

https://github.com/immutable-js/immutable-js/security/advisories/GHSA-xvcm-6775-5m9r
Vendor Advisory
Exploit
Mitigation
https://github.com/immutable-js/immutable-js/commit/3dd7e5655012597a41873e328bf9142a8901527b
Patch
https://github.com/immutable-js/immutable-js/commit/e51d49fc612ded5ec4dfb94ff294d22074269b0f
Patch
https://github.com/immutable-js/immutable-js/releases/tag/v4.3.9
Release Notes
https://github.com/immutable-js/immutable-js/releases/tag/v5.1.8
Release Notes