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Medium severity6.5NVD Advisory· Published May 28, 2026· Updated Jun 1, 2026

CVE-2026-42400

CVE-2026-42400

Description

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user can send a specially crafted compressed request payload that is processed prior to authorization checks, causing excessive memory and CPU resource consumption that can result in a Kibana instance becoming unresponsive or crashing.

AI Insight

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

Affected products

4
  • Elastic/Kibana2 versions
    cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*range: >=8.0.0,<8.19.16
    • (no CPE)
  • 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