Improper Handling of Highly Compressed Data (CWE-409) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). (CVE-2026-72628)
Description
CVE-2026-72628 is a vulnerability in Kibana involving improper handling of highly compressed data that can cause a denial of service via excessive memory allocation. An authenticated user with Streams management privileges can supply specially crafted compressed content that expands to a large volume during processing, exhausting Kibana's memory and causing the process to terminate. This results in service unavailability until Kibana is restarted.
CVSS v3.1
Score 6.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-72628) in Kibana is due to improper handling of highly compressed data (CWE-409). An authenticated user holding Streams management privileges can submit specially crafted compressed content that expands significantly during processing, leading to excessive memory allocation (CAPEC-130). The memory exhaustion causes the Kibana process to be terminated by the host operating system, resulting in a denial of service condition until the service is manually restarted.
Potential Impact
The impact is a denial of service condition where the Kibana process is terminated due to memory exhaustion caused by processing maliciously crafted compressed data. This causes service unavailability for all users until Kibana is restarted. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
No patch or official fix information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. In the meantime, restrict Streams management privileges to trusted users only to reduce risk.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-x7p2-xrmv-3p2x
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-72628"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a984588acd9273b496adcd4
Added to database: 09/02/2026, 15:49:28 UTC
Last enriched: 09/07/2026, 21:24:08 UTC
Last updated: 10/17/2026, 06:48:20 UTC
Views: 36
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