Detections
Analytics
Kibana 9.2.x < 9.4.5 Incorrect Authorization (ESA-2026-82)
medium Nessus Plugin ID 338728
Language:
Synopsis
The remote host is affected by an incorrect authorization vulnerability.Description
The version of Kibana installed on the remote host is 9.2.x prior to 9.4.5. It is, therefore, affected by a vulnerability as referenced in the ESA-2026-82 advisory.- Kibana Agent Builder A2A JSON-RPC API endpoint derives the identifier of a stored conversation from a user-supplied input, and the ownership check on that identifier does not distinguish between a conversation that does not exist and one that exists but belongs to another user. As a result, an authenticated user holding only the Agent Builder read privilege can supply an identifier already in use by another user in the same space and cause that user's conversation to be replaced and reassigned to the requesting account. The original owner permanently loses access to the conversation and its history. (CVE-2026-72680)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update to Kibana version 9.4.5 or later.See Also
Plugin Details
Severity: Medium
ID: 338728
File Name: kibana_esa_2026_82.nasl
Version: 1.3
Type: Remote
Family: CGI abuses
Published: 8/21/2026
Updated: 9/7/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 2.1
Percentile: 7.98
CVSS v2
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 4.1
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:P
CVSS Score Source: CVE-2026-72680
CVSS v3
Risk Factor: Medium
Base Score: 5.4
Temporal Score: 4.7
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:elasticsearch:kibana
Required KB Items: installed_sw/Kibana
Exploit Ease: No known exploits are available
Patch Publication Date: 8/13/2026
Vulnerability Publication Date: 8/13/2026
Reference Information
CVE: CVE-2026-72680
CWE: 639
IAVB: 2026-B-0232