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Medium severity4.1NVD Advisory· Published May 28, 2026· Updated May 29, 2026

CVE-2026-42401

CVE-2026-42401

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4
  • Elastic/Kibanainferred2 versions
    (expand)+ 1 more
    • (no CPE)
    • (no CPE)range: >=8.19.0, <8.19.16; >=9.0.0, <9.3.5
  • osv-coords2 versions
    pkg:bitnami/elkpkg:bitnami/kibana
    >= 8.0.0, < 8.19.16+ 1 more
    • (no CPE)range: >= 8.0.0, < 8.19.16
    • (no CPE)range: >= 8.0.0, < 8.19.16

Patches

Vulnerability mechanics

References

1

News mentions

1