CVE-2026-72628

MEDIUMCVSS 6.5/10

Last modified

CVE-2026-72628 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Improper Handling of Highly Compressed Data (CWE-409) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding Streams management privileges could supply specially crafted content that expands to a far larger volume of data during processing, exhausting the memory available to Kibana.

Description

Improper Handling of Highly Compressed Data (CWE-409) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding Streams management privileges could supply specially crafted content that expands to a far larger volume of data during processing, exhausting the memory available to Kibana. The Kibana process is terminated by the host and remains unavailable to all users until the service is restarted.

Metrics

Weakness Enumeration

Affected Software

VendorProductVersions
ElasticKibana>= 8.19.0, < 8.19.21
ElasticKibana>= 9.0.0, < 9.4.6
ElasticKibana>= 9.5.0, < 9.5.2

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-72628?
Improper Handling of Highly Compressed Data (CWE-409) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding Streams management privileges could supply specially crafted content that expands to a far larger volume of data during processing, exhausting the memory available to Kibana. The Kibana process is terminated by the host and remains unavailable to all users until the service is restarted.
How severe is CVE-2026-72628?
CVE-2026-72628 has a CVSS score of 6.5/10 (MEDIUM severity).
How do I fix CVE-2026-72628?
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