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CVE-2026-42401

4.1 MEDIUM

Improper Neutralization of Input During Web Page Generation (CWE-79) in Kibana can lead to stored HTML injection

Published: 2026-05-28 · Last updated: 2026-05-29

Severity and scoring

CVSS
4.1 MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
CWE
CWE-79

Affected products

VendorProduct
elastickibana

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.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-49095 — Improper Input Validation (CWE-20) in the Kibana Fleet agent policy management feature can lead to privilege escalation (6.5 MEDIUM)
  • CVE-2026-49094 — Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130) (6.5 MEDIUM)
  • CVE-2026-49093 — Server-Side Request Forgery (CWE-918) in Kibana can allow an authenticated user with connector management privileges to bypass the operat... (6.3 MEDIUM)
  • CVE-2026-42400 — Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130) (6.5 MEDIUM)
  • CVE-2026-42399 — Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130) (6.5 MEDIUM)

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