CVE-2026-33460: CWE-863 Incorrect Authorization in Elastic Kibana
Incorrect Authorization (CWE-863) in Kibana can lead to cross-space information disclosure via Privilege Abuse (CAPEC-122). A user with Fleet agent management privileges in one Kibana space can retrieve Fleet Server policy details from other spaces through an internal enrollment endpoint. The endpoint bypasses space-scoped access controls by using an unscoped internal client, returning operational identifiers, policy names, management state, and infrastructure linkage details from spaces the user is not authorized to access.
AI Analysis
Technical Summary
CVE-2026-33460 is a medium-severity authorization vulnerability (CWE-863) in Elastic Kibana versions 8.0.0, 9.0.0, and 9.3.0. It enables users with Fleet agent management privileges in one space to retrieve Fleet Server policy details from other spaces via an internal enrollment endpoint. This endpoint uses an unscoped internal client that bypasses space-scoped access controls, leading to cross-space information disclosure. The leaked data includes operational identifiers, policy names, management state, and infrastructure linkage details. The vulnerability does not affect availability or integrity, only confidentiality. No patch or official remediation guidance is currently available, and no exploits have been observed in the wild.
Potential Impact
The vulnerability allows unauthorized disclosure of Fleet Server policy details across Kibana spaces, potentially exposing sensitive operational information to users who should not have access. This could aid an attacker in understanding or mapping the Fleet Server environment but does not directly impact system integrity or availability. The impact is limited to confidentiality loss of policy-related data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict Fleet agent management privileges to trusted users only to minimize risk. Monitor Elastic's official advisories for updates on patches or mitigations.
CVE-2026-33460: CWE-863 Incorrect Authorization in Elastic Kibana
Description
Incorrect Authorization (CWE-863) in Kibana can lead to cross-space information disclosure via Privilege Abuse (CAPEC-122). A user with Fleet agent management privileges in one Kibana space can retrieve Fleet Server policy details from other spaces through an internal enrollment endpoint. The endpoint bypasses space-scoped access controls by using an unscoped internal client, returning operational identifiers, policy names, management state, and infrastructure linkage details from spaces the user is not authorized to access.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-33460 is a medium-severity authorization vulnerability (CWE-863) in Elastic Kibana versions 8.0.0, 9.0.0, and 9.3.0. It enables users with Fleet agent management privileges in one space to retrieve Fleet Server policy details from other spaces via an internal enrollment endpoint. This endpoint uses an unscoped internal client that bypasses space-scoped access controls, leading to cross-space information disclosure. The leaked data includes operational identifiers, policy names, management state, and infrastructure linkage details. The vulnerability does not affect availability or integrity, only confidentiality. No patch or official remediation guidance is currently available, and no exploits have been observed in the wild.
Potential Impact
The vulnerability allows unauthorized disclosure of Fleet Server policy details across Kibana spaces, potentially exposing sensitive operational information to users who should not have access. This could aid an attacker in understanding or mapping the Fleet Server environment but does not directly impact system integrity or availability. The impact is limited to confidentiality loss of policy-related data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict Fleet agent management privileges to trusted users only to minimize risk. Monitor Elastic's official advisories for updates on patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-03-20T10:53:23.099Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d737031cc7ad14da4194d8
Added to database: 4/9/2026, 5:20:03 AM
Last enriched: 4/9/2026, 5:26:09 AM
Last updated: 4/10/2026, 5:45:59 AM
Views: 11
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