Server-Side Request Forgery (SSRF) in Kibana - CVE-2026-33458
Published: April 9, 2026
Vulnerability identifier: #VU125551
CSH Severity: Medium
CVSS v4.0: 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:Green
CVE-ID: CVE-2026-33458
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Elastic Stack
Affected software:
Kibana
Kibana
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to server-side request forgery in Kibana One Workflow Workflows Execution Engine when processing workflow HTTP steps that follow redirects. A remote user can send a specially crafted workflow to disclose sensitive information.
Exploitation requires workflow creation and execution privileges, and only deployments with the Workflows Execution Engine enabled are vulnerable.
How to mitigate CVE-2026-33458
Install security update from vendor's website.