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CVE-2026-42398

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CVE-2026-42398

Published: May 28, 2026

Modified: May 29, 2026

PUBLISHED

CVSS v3.1

7.7

HIGH

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.

VendorProductVersions

Elastic

Kibana

affected
9.3.0 - <= 9.3.1
affected
9.0.0 - <= 9.2.7

Weaknesses (CWE)

CWE-918

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

References

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