Auth bypass in Elastic Kibana
CVE-2026-63142
Incomplete List of Disallowed Inputs (CWE-184) in Kibana can allow an authenticated attacker with access to the Reporting feature to bypass outbound request restrictions configured by an administrator, causing the reporting service to send requests to network destinations that should be denied by the configured security policy.
Vulnerability class: Broken Access Control
EPSS: 0.003 (20.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.
Affected products
- Elastic Kibana — versions 9.4.0, 8.0.0, 9.0.0
Weakness classification (CWE)
References
- security@elastic.co (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-63142?
- CVE-2026-63142 is a medium-severity vulnerability in Elastic Kibana, classified under Incorrect Authorization. CVSS score: 5.0/10. Published 2026-07-21.
- How severe is CVE-2026-63142?
- Medium severity. CVSS v3 base score is 5.0 out of 10.