Vulnerability DatabaseCVE-2026-26935
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CVE-2026-26935
February 26, 2026
Improper Input Validation (CWE-20) in the internal Content Connectors search endpoint in Kibana can lead Denial of Service via Input Data Manipulation (CAPEC-153)
Affected Packages
https://github.com/elastic/kibana.git (GITHUB):
Affected version(s) >=v9.0.0 <v9.2.6
Fix Suggestion:
Update to version v9.2.6
https://github.com/elastic/kibana.git (GITHUB):
Affected version(s) >=v8.4.0 <v8.19.12
Fix Suggestion:
Update to version v8.19.12
https://github.com/elastic/kibana.git (GITHUB):
Affected version(s) =v9.3.0 <v9.3.1
Fix Suggestion:
Update to version v9.3.1
Related Resources (1)
https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-security-update-esa-2026-13/385249
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Input Validation
CWE-20
EPSS
Base Score:
0.07