CVE-2026-13759: falha de alta gravidade em IBM WebSphere Extreme Scale
IBM WebSphere eXtreme Scale is affected by Insecure Deserilization
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 0.5%
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
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
IBM · WebSphere Extreme ScaleCVEs relacionadas — IBM WebSphere Extreme Scale
No mesmo produto, das mais perigosas para as menos.
CVE-2026-13773MEDIUMIBM WebSphere eXtreme Scale is affected by server side request forgery when ORB is used as Transport ProtocolEPSS 6.1%CVE-2026-13772HIGHIBM WebSphere eXtreme Scale's OQL is affected by remote code executionEPSS 0.5%CVE-2026-9002MEDIUMIBM WebSphere eXtremes Scale is affected by uncontrolled resource consumption when XDF is enabledEPSS 0.3%