CVE-2026-42398
Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access
CVSS Score
7.7
EPSS Score
0.0%
EPSS Percentile
9th
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.
| CWE | CWE-918 |
| Vendor | elastic |
| Product | kibana |
| Published | May 28, 2026 |
| Last Updated | May 29, 2026 |
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CVSS v3 Breakdown
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
Affected Versions
Elastic / Kibana
9.3.0 ≤ 9.3.1 9.0.0 ≤ 9.2.7