CVE-2026-72643
Incorrect Authorization in Kibana Agent Builder Leading to Disclosure and Tampering of Private Agents
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
Kibana Agent Builder determines whether a caller owns a private agent by comparing a stable user identifier when one is recorded, and falling back to a comparison of the username when it is not. A username is not unique across Elasticsearch authentication realms, so two distinct principals that share a username in different realms are treated as the same owner. This discloses the configuration and instructions of an agent the caller does not own, and allows that agent to be altered or removed.
| CWE | CWE-863 |
| Vendor | elastic |
| Product | kibana |
| Published | Aug 13, 2026 |
| Last Updated | Aug 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
Elastic / Kibana
9.4.0 ≤ 9.4.4 9.5.0