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CVE-2026-42398

7.7 HIGH

Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-co...

Published: 2026-05-28 · Last updated: 2026-06-01

Severity and scoring

CVSS
7.7 HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE
CWE-918

Affected products

VendorProduct
elastickibana

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.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-49095 — Improper Input Validation (CWE-20) in the Kibana Fleet agent policy management feature can lead to privilege escalation (6.5 MEDIUM)
  • CVE-2026-49094 — Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130) (6.5 MEDIUM)
  • CVE-2026-49093 — Server-Side Request Forgery (CWE-918) in Kibana can allow an authenticated user with connector management privileges to bypass the operat... (6.3 MEDIUM)
  • CVE-2026-42400 — Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130) (6.5 MEDIUM)
  • CVE-2026-42399 — Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130) (6.5 MEDIUM)

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