PT-2026-56499 · Immutable Js · Immutable-Js

Publicado 2026-07-08 · Atualizado 2026-07-08 · CVE-2026-59880

NVD

CVSS v4.0

8.7

Alta

Vetor base

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

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.

Exploit

Correção

Enumeração de Fraquezas

CWE-407

Identificadores relacionados

CVE-2026-59880

Produtos afetados

Immutable-Js

Referências · 6

• 🔥 https://github.com/immutable-js/immutable-js/security/advisories/GHSA-xvcm-6775-5m9r · Exploit
• https://github.com/immutable-js/immutable-js/releases/tag/v4.3.9 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-59880 · Nota de Segurança
• https://github.com/immutable-js/immutable-js/releases/tag/v5.1.8 · Nota
• https://github.com/immutable-js/immutable-js/commit/e51d49fc612ded5ec4dfb94ff294d22074269b0f · Nota
• https://github.com/immutable-js/immutable-js/commit/3dd7e5655012597a41873e328bf9142a8901527b · Nota