CVE-2026-42398

Summary

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 Software

VendorProductVersion RangeStatus
ElasticKibana9.3.0 <= 9.3.1affected
ElasticKibana9.0.0 <= 9.2.7affected

Weaknesses

  • CWE-918: CWE-918 Server-Side Request Forgery (SSRF)

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References