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CVE PROGRAM SOURCE RECORD4.1 Medium

CVE-2026-42401

Improper Neutralization of Input During Web Page Generation in Kibana Leading to Stored HTML Injection

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Elastic Kibana

Default version status: unaffected

  • 9.0.0 to ≤ 9.3.4affected
  • 8.0.0 to ≤ 8.19.15affected

References