CVE-2026-42401
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
- Kibana
- Elastic Kibana
- < 8.19.16, 9.3.5
- CVSS 3.1
- 5.4 MEDIUM
- EPSS
- 0.1% (4th percentile)
- Weakness
- CWE-79
- NVD status
- Analyzed
- Published
- 2026-05-28
- Attack patterns
- CAPEC-137
CVE-2026-42401 at NVD
No indexed exploits for CVE-2026-42401 yet
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No exploit for CVE-2026-42401 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.