ElasticCVE-2026-78581
Elastic Kibana: insecure direct object reference
Medium4.2CVE-2026-78581 · Published Aug 25, 2026 · updated Sep 2, 2026
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized data modification via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Under certain conditions, an authenticated user could reference another user's AI Assistant conversation identifier to access or modify a conversation they do not own. Successful exploitation requires knowledge of a hard-to-guess identifier.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Kibana Product | >= 8.0.0, <= 8.16.2 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-639
More Elastic advisories
All Elastic| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 1 | Elastic Kibana: denial of service | Medium6.5 | No fix yet |
| Sep 1 | Elastic Kibana: information disclosure | Medium6.5 | No fix yet |
| Sep 1 | Elastic Kibana: improper authorization | High8.3 | No fix yet |
| Sep 1 | Elasticsearch: denial of service | Medium4.9 | No fix yet |
| Sep 1 | Elastic Kibana: denial of service | Medium6.5 | No fix yet |
| Sep 1 | Elastic Security: denial of service | High7.2 | No fix yet |