CVE-2026-78586

MEDIUMCVSS 6.5/10

Last modified

CVE-2026-78586 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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..

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.

Metrics

Weakness Enumeration

Affected Software

VendorProductVersions
ElasticKibana>= 8.0.0, < 8.19.16
ElasticKibana>= 9.0.0, < 9.3.5
ElasticKibana>= 9.4.0, < 9.4.2

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-78586?
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.
How severe is CVE-2026-78586?
CVE-2026-78586 has a CVSS score of 6.5/10 (MEDIUM severity).
How do I fix CVE-2026-78586?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST