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Kibana CVE-2026-26934

MEDIUM
Improper Validation of Specified Quantity in Input (CWE-1284)
2026-02-26 security@elastic.co
Denial Of Service Kibana
6.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Feb 26, 2026 - 18:23 nvd
MEDIUM 6.5

DescriptionNVD

Improper Validation of Specified Quantity in Input (CWE-1284) in Kibana can allow an authenticated attacker with view-only privileges to cause a Denial of Service via Input Data Manipulation (CAPEC-153). An attacker can send a specially crafted, malformed payload causing excessive resource consumption and resulting in Kibana becoming unresponsive or crashing.

AnalysisAI

Kibana contains a vulnerability that allows attackers to an authenticated attacker with view-only privileges to cause a Denial of Service (CVSS 6.5).

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CVE-2026-26934 vulnerability details – vuln.today
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