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High severity7.7NVD Advisory· Published May 28, 2026· Updated Jun 17, 2026

CVE-2026-42398

CVE-2026-42398

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

5
  • osv-coords2 versions
    pkg:bitnami/elkpkg:bitnami/kibana
    >= 9.0.0, < 9.2.8+ 1 more
    • (no CPE)range: >= 9.0.0, < 9.2.8
    • (no CPE)range: >= 9.0.0, < 9.2.8
  • Elastic/Kibana3 versions
    cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*range: >=9.0.0,<9.2.8
    • (no CPE)
    • (no CPE)

Patches

Vulnerability mechanics

References

1

News mentions

1