CVE-2026-4498 json
Execution with Unnecessary Privileges in Kibana Leading to reading index data beyond their direct Elasticsearch RBAC scope
published 2026-04-08 7 mo ago modified 2026-09-08 2 mo ago also BIT-elk-2026-4498 , BIT-kibana-2026-4498 , EUVD-2026-20528
- cvss
- 7.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
Execution with Unnecessary Privileges (CWE-250) in Kibana’s Fleet plugin debug route handlers can lead reading index data beyond their direct Elasticsearch RBAC scope via Privilege Abuse (CAPEC-122). This requires an authenticated Kibana user with Fleet sub-feature privileges (such as agents, agent policies, and settings management).
Patch / fix
- bitnami elk 8.19.14, 9.2.8, 9.3.3
- bitnami kibana 8.19.14, 9.2.8, 9.3.3
- elastic kibana 8.19.14, 9.2.8, 9.3.3
- elasticsearch kibana 8.19.14, 9.2.8, 9.3.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| OSV | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | elk | >=8.0.0, <8.19.14 >=9.0.0, <9.2.8 >=9.3.0, <9.3.3 |
8.19.14 9.2.8 9.3.3 |
| bitnami | kibana | >=8.0.0, <8.19.14 >=9.0.0, <9.2.8 >=9.3.0, <9.3.3 |
8.19.14 9.2.8 9.3.3 |
Affected products
- Elastic Kibana
Classification
- Weakness
-
- CWE-250 Execution with Unnecessary Privileges
References
-
discuss.elastic.co
/t/kibana-8-19-14-9-2-8-9-3-3-security-update-esa-2026-21/385811
vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-4498
web
Sources
- CVE List CVE-2026-4498
- NVD CVE-2026-4498
- OSV BIT-elk-2026-4498
- OSV BIT-kibana-2026-4498
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.