Elk: Missing Authorization in Kibana Leading to Information Disclosure (CVE-2026-72661)
A missing authorization vulnerability in Kibana allows authenticated low-privileged users to access endpoint response action records and response content without proper permissions. This occurs because an internal data retrieval function used by Elastic Defend endpoint response actions does not enforce required Security Solution and endpoint privileges, instead retrieving data with elevated internal permissions. The issue affects multiple Kibana versions from 8.12.0 up to but not including 8.19.19, 9.0.0 up to 9.3.8, and 9.4.0 up to 9.4.4. A patch is available to address this vulnerability. No known exploits are reported in the wild.
AI Analysis
Technical Summary
CVE-2026-72661 is a missing authorization vulnerability (CWE-862) in Kibana where an internal data retrieval capability used by Elastic Defend endpoint response actions does not enforce the Security Solution and endpoint privileges required by its user-facing equivalents. This flaw allows an authenticated user with low privileges and no Elasticsearch privileges on the underlying data to read endpoint response action records and corresponding response content returned by managed hosts. The vulnerability arises because the internal function retrieves data with elevated internal permissions rather than those of the requesting user. Affected versions include >=8.12.0 <8.19.19, >=9.0.0 <9.3.8, and >=9.4.0 <9.4.4. A patch is available to fix this issue.
Potential Impact
An authenticated Kibana user without Security Solution, endpoint, or Elasticsearch privileges can access sensitive endpoint response action data and response content that should be restricted. This leads to unauthorized information disclosure within the Kibana environment. There is no indication of privilege escalation beyond information disclosure or active exploitation in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability. Users should upgrade Kibana to versions 8.19.19 or later, 9.3.8 or later, or 9.4.4 or later to remediate this issue. Until patched, restrict Kibana user access to trusted users only to minimize risk.
Elk: Missing Authorization in Kibana Leading to Information Disclosure (CVE-2026-72661)
Description
A missing authorization vulnerability in Kibana allows authenticated low-privileged users to access endpoint response action records and response content without proper permissions. This occurs because an internal data retrieval function used by Elastic Defend endpoint response actions does not enforce required Security Solution and endpoint privileges, instead retrieving data with elevated internal permissions. The issue affects multiple Kibana versions from 8.12.0 up to but not including 8.19.19, 9.0.0 up to 9.3.8, and 9.4.0 up to 9.4.4. A patch is available to address this vulnerability. No known exploits are reported in the wild.
Affected software
pkg:bitnami/kibanaRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-72661 is a missing authorization vulnerability (CWE-862) in Kibana where an internal data retrieval capability used by Elastic Defend endpoint response actions does not enforce the Security Solution and endpoint privileges required by its user-facing equivalents. This flaw allows an authenticated user with low privileges and no Elasticsearch privileges on the underlying data to read endpoint response action records and corresponding response content returned by managed hosts. The vulnerability arises because the internal function retrieves data with elevated internal permissions rather than those of the requesting user. Affected versions include >=8.12.0 <8.19.19, >=9.0.0 <9.3.8, and >=9.4.0 <9.4.4. A patch is available to fix this issue.
Potential Impact
An authenticated Kibana user without Security Solution, endpoint, or Elasticsearch privileges can access sensitive endpoint response action data and response content that should be restricted. This leads to unauthorized information disclosure within the Kibana environment. There is no indication of privilege escalation beyond information disclosure or active exploitation in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability. Users should upgrade Kibana to versions 8.19.19 or later, 9.3.8 or later, or 9.4.4 or later to remediate this issue. Until patched, restrict Kibana user access to trusted users only to minimize risk.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-kibana-2026-72661
- Osv Schema Version
- 1.6.2
- Aliases
- ["CVE-2026-72661"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- Medium
- Cvss Version
- null
Threat ID: 6a85b4aaacd9273b49250efe
Added to database: 08/19/2026, 13:50:34 UTC
Last enriched: 08/19/2026, 14:03:59 UTC
Last updated: 08/19/2026, 16:52:01 UTC
Views: 2
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