CVE-2026-94399: CWE-400 Uncontrolled Resource Consumption in Elastic Elasticsearch
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)
AI Analysis
Technical Summary
CVE-2026-94399 describes an uncontrolled resource consumption vulnerability (CWE-400) in Elastic Elasticsearch that can lead to denial of service by excessive allocation of resources (CAPEC-130). The vulnerability affects Elasticsearch versions >=8.0.0 <=8.19.21, >=9.0.0 <=9.4.6, and >=9.5.0 <=9.5.3. The CVSS 3.1 base score is 6.5, reflecting network attack vector, low attack complexity, low privileges required, no user interaction, unchanged scope, no impact on confidentiality or integrity, and high impact on availability. No vendor advisory or patch information is provided in the input data.
Potential Impact
Successful exploitation of this vulnerability can cause denial of service by exhausting system resources, leading to service unavailability. There is no impact on data confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch or official fix is available, monitor Elasticsearch resource usage and consider applying any recommended temporary mitigations from Elastic.
CVE-2026-94399: CWE-400 Uncontrolled Resource Consumption in Elastic Elasticsearch
Description
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)
CVSS v3.1
Score 6.5medium
Affected software
Elastic
Elasticsearch
pkg:maven/org.elasticsearch/elasticsearchRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-94399 describes an uncontrolled resource consumption vulnerability (CWE-400) in Elastic Elasticsearch that can lead to denial of service by excessive allocation of resources (CAPEC-130). The vulnerability affects Elasticsearch versions >=8.0.0 <=8.19.21, >=9.0.0 <=9.4.6, and >=9.5.0 <=9.5.3. The CVSS 3.1 base score is 6.5, reflecting network attack vector, low attack complexity, low privileges required, no user interaction, unchanged scope, no impact on confidentiality or integrity, and high impact on availability. No vendor advisory or patch information is provided in the input data.
Potential Impact
Successful exploitation of this vulnerability can cause denial of service by exhausting system resources, leading to service unavailability. There is no impact on data confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch or official fix is available, monitor Elasticsearch resource usage and consider applying any recommended temporary mitigations from Elastic.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-09-21T13:29:41.420Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab83075f7a7c54106b6818b
Added to database: 09/26/2026, 20:52:05 UTC
Last enriched: 09/26/2026, 21:02:53 UTC
Last updated: 09/28/2026, 00:47:33 UTC
Views: 25
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