CVE-2026-78606Incorrect Authorization in Kibana Leading to Unauthorized Disclosure, Modification, and Deletion of Data
Updated under an hour ago ()
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It affects Elastic Kibana. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Incorrect Authorization (CWE-863) in Kibana can lead to unauthorized disclosure, modification, and deletion of data via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Where two authenticated principals originating from different authentication realms share the same username value, one could read, modify, and delete the other's private Elastic AI Assistant Knowledge Base entries.
- CVSS
- 4.2 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- elastic
- NVD analysis
- Analyzed
- Record last updated
- Sep 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Elastic Kibana elastic:kibana (from the name) | from 8.19.11 through 8.19.20; from 9.3.0 through 9.4.5; from 9.5.0 through 9.5.1 | CNA record |
elastic kibana elastic:kibana | from 8.19.11 before 8.19.21; from 9.3.0 before 9.4.6; from 9.5.0 before 9.5.2 | NVD |
References
- https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-2-security-update-esa-2026-142/390093vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.