CVE-2026-42398

Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access

CVSS 7.7 HIGHEPSS 0.3%CWE-918

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 7.7EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

28 may 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection allowlist. By configuring a Webhook connector with a crafted target, an attacker can cause Kibana to issue outbound requests to destinations that the egress restriction controls were intended to block.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Productos afectados

Elastic · Kibana

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Referencias

https://discuss.elastic.co/t/kibana-9-2-8-and-9-3-2-security-update-esa-2026-37/386557