CVE-2026-42398
HIGH
NVD
CVSS Score
7.7
Severity
HIGH
Published
May 28, 2026
Vendor
unknown
Description
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.