CVE-2026-78583 json
Incorrect Authorization in Kibana Leading to Privilege Escalation
published 2026-09-03 2 mo ago modified 2026-09-09 2 mo ago also BIT-elk-2026-78583 , BIT-kibana-2026-78583 , EUVD-2026-70657
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153). Elasticsearch cluster privilege declarations originating from integration packages were not validated before being used to mint credentials for enrolled Elastic Agents. A user holding Fleet management privileges could therefore cause every Elastic Agent on a targeted policy to receive a credential carrying arbitrarily elevated Elasticsearch cluster privileges, up to and including full cluster administration.
Patch / fix
- bitnami elk 8.19.21, 9.4.6, 9.5.3
- bitnami kibana 8.19.21, 9.4.6, 9.5.3
- elastic kibana 8.19.21, 9.4.6, 9.5.3
- elasticsearch kibana 8.19.21, 9.4.6, 9.5.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| OSV | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | elk | >=8.0.0, <8.19.21 >=9.0.0, <9.4.6 >=9.5.0, <9.5.3 |
8.19.21 9.4.6 9.5.3 |
| bitnami | kibana | >=8.0.0, <8.19.21 >=9.0.0, <9.4.6 >=9.5.0, <9.5.3 |
8.19.21 9.4.6 9.5.3 |
Affected products
- Elastic Kibana
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
discuss.elastic.co
/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-140/390158
vendor-advisory, mitigation, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-78583
web
Sources
- CVE List CVE-2026-78583
- NVD CVE-2026-78583
- OSV BIT-elk-2026-78583
- OSV BIT-kibana-2026-78583
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.