CVE-2026-72628 — MEDIUM (6.5)

Q: How severe is CVE-2026-72628?

CVE-2026-72628 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-72628?

Check the references section above for vendor advisories and patch information. Affected products include: Elastic Kibana.

Vulnerability 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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Elastic	Kibana	>= 8.19.0, < 8.19.21

Related Weaknesses (CWE)

CWE-409

References

https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-2-security-update-esa-2026MitigationVendor Advisory

FAQ

What is CVE-2026-72628?

CVE-2026-72628 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...

How severe is CVE-2026-72628?

CVE-2026-72628 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-72628?

Check the references section above for vendor advisories and patch information. Affected products include: Elastic Kibana.