SB2026052934 - Server-Side Request Forgery (SSRF) in Kibana

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Main Vulnerability Database SB2026052934

SB2026052934 - Server-Side Request Forgery (SSRF) in Kibana

Published: May 29, 2026

Security Bulletin ID SB2026052934
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-49093)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to access unauthorized network destinations.

The vulnerability exists due to server-side request forgery in connector management functionality when processing connector requests. A remote user can configure a connector request that bypasses the configured allowlist to access unauthorized network destinations.

Only deployments that use a non-wildcard xpack.actions.allowedHosts value as an egress control are affected.


Remediation

Install update from vendor's website.

References