CVE-2026-42398 — Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access

CVE-2026-42398

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

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Elastic / Kibana	affected 9.3.0 through 9.3.1; affected 9.0.0 through 9.2.7

CWE

CWE-918

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.