Medium severity · published Sep 1, 2026
CVE-2026-63138
Improper Neutralization of Special Elements in Data Query Logic in Kibana Leading to Information Disclosure
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
Improper Neutralization of Special Elements in Data Query Logic (CWE-943) in Kibana can lead to information disclosure via NoSQL Injection (CAPEC-676). An authenticated user with access to the affected query functionality could submit specially crafted input that alters the intended query logic, returning data the user is not authorized to read.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KI
Kibana · Elastic
9.4.0 through 9.4.4; 9.5.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63138
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-63138
Vendor Advisory
https://discuss.elastic.co/t/kibana-9-4-5-9-5-1-security-update-esa-2026-168/390082
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