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Fencer Vulns
medium 5.4

CVE-2026-56146 json

Improper Access Control in Kibana Leading to Unauthorized Data Modification and Information Disclosure

published 2026-07-21 3 mo ago modified 2026-10-24 15 d ago also BIT-elk-2026-56146 , BIT-kibana-2026-56146 , EUVD-2026-46396

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

Improper Access Control (CWE-284) in Kibana can lead to unauthorized modification of Entity Analytics Watchlist configuration and potential information disclosure. A low-privileged authenticated user with read-only Security Solution access could perform write operations on watchlist data that should require elevated privileges. Under specific deployment conditions, this could also allow such a user to access data beyond their authorized scope.

Patch / fix

  • bitnami elk 9.4.3
  • bitnami kibana 9.4.3
  • elastic kibana 9.4.3
  • elasticsearch kibana 9.4.3

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
3 mo ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
OSV 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
bitnami elk
>=9.4.0, <9.4.3
9.4.3
bitnami kibana
>=9.4.0, <9.4.3
9.4.3

Affected products

  • Elastic Kibana

Classification

Weakness

References

Sources

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.