PT-2026-44509 · Elastic · Kibana

Ismisepaul + 1 · Published 2026-05-28 · Updated 2026-06-01 · CVE-2026-42398

Positive Technologies (AI Summary)

CVSS v3.1

7.7

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Kibana (affected versions not specified)

Description Server-Side Request Forgery (SSRF) 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 the system to issue outbound requests to destinations that egress restriction controls were intended to block.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

BIT-ELK-2026-42398

BIT-KIBANA-2026-42398

CVE-2026-42398

Affected Products

Kibana

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-42398 · Security Note
• https://discuss.elastic.co/t/kibana-9-2-8-and-9-3-2-security-update-esa-2026-37/386557 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-kibana-2026-42398 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-elk-2026-42398 · Vendor Advisory
• https://t.me/cveNotify/165470 · Telegram Post