CVE-2026-42401
Improper Neutralization of Input During Web Page Generation in Kibana Leading to Stored HTML Injection
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 4.1EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
28 May 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
Improper Neutralization of Input During Web Page Generation (CWE-79) in Kibana can lead to stored HTML injection. A user with write access to an Elasticsearch index could persist crafted markup which, when subsequently rendered through an affected Kibana view by another user, was not sufficiently sanitized. Successful exploitation could result in unauthorized UI manipulation and outbound network requests issued from the viewing user's browser session.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
Affected products
Elastic · KibanaWant to know if your infrastructure is exposed to this?
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