SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-33458

Server-Side Request Forgery (CWE-918) in Kibana One Workflow can lead to information disclosure.

HIGH 7.7EPSS 0.23%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Server-Side Request Forgery (CWE-918) in Kibana One Workflow can lead to information disclosure. An authenticated user with workflow creation and execution privileges can bypass host allowlist restrictions in the Workflows Execution Engine, potentially exposing sensitive internal endpoints and data.

CVSS 3.1
7.7 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS
0.23% probability · 13th percentile
CISA KEV
Not listed
Weakness
CWE-918
Affected
elastic/kibana
Source
security@elastic.co

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.