CVE-2026-42398

published 2026-05-28

CVE-2026-42398: Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection…

Priority P3 49 high 7.7 CVSS 3.1

AV N AC L PR L UI N S C C H I N A N

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

4 ranges

Vendor	Product	Version range	Fixed in
elastic	kibana	>= 9.0.0 < 9.2.8	9.2.8
elastic	kibana	9.0.0 – 9.2.7	—
elastic	kibana	>= 9.3.0 < 9.3.2	9.3.2
elastic	kibana	9.3.0 – 9.3.1	—

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-918