Incorrect Authorization in Kibana Agent Builder Leading to Disclosure and Tampering of Private Agents (Elastic Kibana)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.38 % · percentile 32 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- elastic
- NVD status
- Analyzed
Description
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.
Weaknesses (CWE)
- CWE-863 — Incorrect Authorization
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N | elastic |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N | NVD · security@elastic.co (Secondary) |
European references
- ENISA EUVD · EUVD-2026-58288
- GCVE · GCVE-0-2026-72643
CERT-FR advisories
- CERTFR-2026-AVI-1020 — Multiples vulnérabilités dans Elastic Kibana · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*≥ 9.4.0 < 9.4.5cpe:2.3:a:elastic:kibana:9.5.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Elastic · Kibana | affected 9.4.0 ≤ 9.4.4 ; affected 9.5.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |