CVE-2026-78596 json
Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations
published 2026-09-03 2 mo ago modified 2026-09-09 2 mo ago also BIT-elk-2026-78596 , BIT-kibana-2026-78596 , EUVD-2026-70660
- cvss
- 4.3
- 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 19%
- public exploits
- 0
- none known
Summary
Missing Authorization in Kibana Leading to Unauthorized Modification of Data / Missing Authorization (CWE-862) in Kibana can lead to unauthorized modification of data via Privilege Abuse (CAPEC-122). An authenticated user holding Security read-level access in a single Kibana space could trigger Entity Analytics migration operations that perform privileged writes across all Kibana spaces, regardless of that user's actual access scope.
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
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | elk | >=8.18.3, <8.19.21 >=9.0.3, <9.4.6 >=9.5.0, <9.5.3 |
8.19.21 9.4.6 9.5.3 |
| bitnami | kibana | >=8.18.3, <8.19.21 >=9.0.3, <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-862 Missing Authorization
References
Sources
- CVE List CVE-2026-78596
- NVD CVE-2026-78596
- OSV BIT-elk-2026-78596
- OSV BIT-kibana-2026-78596
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.