CVE-2026-42398
HIGH7.7EPSS 0.03%Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access
Published: 6/1/2026Modified: 6/1/2026
Also known as:BIT-elk-2026-42398BIT-kibana-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.
Affected packages (1)
- Bitnami/elk>= 9.0.0, < 9.2.8, >= 9.3.0, < 9.3.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |