What’s Vulnerable › Vulnerabilities
CVE-2026-26935: Improper Input Validation in Kibana Leading to Denial of Service
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-26 · updated 2026-06-17
- Weakness: CWE-20
Description
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 products
- Kibana: from 8.4.0 before 8.19.12; from 9.0.0 before 9.2.6; 9.3.0 — fixed in 8.19.12, 9.2.6
How to fix
Upgrade to a fixed version: Kibana 8.19.12, 9.2.6. Check the vendor advisory for mitigations.
References
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