CVE-2026-26934: Improper Validation of Specified Quantity in Input in Kibana Leading to Denial of Service
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-26934?
CVE-2026-26934 is classified as a high-severity vulnerability due to its potential to cause a Denial of Service.
How do I fix CVE-2026-26934?
To fix CVE-2026-26934, update your Kibana instance to the latest version that includes the security patches addressing this vulnerability.
Who is affected by CVE-2026-26934?
CVE-2026-26934 affects authenticated users with view-only privileges in Kibana.
What conditions allow exploitation of CVE-2026-26934?
Exploitation of CVE-2026-26934 occurs when an attacker sends specially crafted malformed payloads to manipulate input data.
What could be the impact of CVE-2026-26934?
The impact of CVE-2026-26934 can lead to Denial of Service due to excessive resource consumption on the affected Kibana instance.