PT-2026-53942 · Ibm · Ibm Websphere Extreme Scale

Publicado 2026-06-30 · Atualizado 2026-06-30 · CVE-2026-13759

NVD

CVSS v3.1

7.5

Alta

Vetor base

AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 ships three ObjectInputStream subclasses (WsObjectInputStream, ObjectStreamPool$ReusableInputStream, ObjectInputStreamResolver) that install no JEP-290 class filter; when Coherence is on the classpath, multiple RCE gadget chains including RemoteConstructor.readResolve and PriorityQueue/ExtractorComparator are confirmed working, allowing a post-login attacker who can write a session attribute or a LAN-adjacent attacker on the grid replication wire to execute arbitrary code on peer WAS JVMs

Correção

Deserialization of Untrusted Data

Enumeração de Fraquezas

CWE-502

Identificadores relacionados

CVE-2026-13759

Produtos afetados

Ibm Websphere Extreme Scale

Referências · 2

• https://ibm.com/support/pages/node/7278595 · Correção, Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-13759 · Nota de Segurança