Is CVE-2026-78586 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-78586?

CVE-2026-78586 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-78586

Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user with low-level privileges could submit a specially crafted request that causes Kibana to consume an unbounded amount of memory, rendering it unavailable to all users.