Assessment
Why it matters
EPSS is 0.2%; technical severity is CVSS 7.7.
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.
Who should care
- Teams operating Kibana
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Kibana is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Vendor advisory from discuss.elastic.co
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CWE
- CWE-918
- Affected versions
- Elastic Kibana (Start Including 9.3.0, End Excluding 9.3.3)
- Fixed versions
- Elastic Kibana (Fixed from 9.3.3)
- Published
- 8 April 2026
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
Signal timeline
- CVE published
- Latest EPSS score: 0.2%
- Signal calculated at 12