CVE-2026-94398: 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
This vulnerability in Elasticsearch is classified as CWE-400 (Uncontrolled Resource Consumption) and can lead to denial of service by excessive allocation of system resources (CAPEC-130). The CVSS 3.1 base score is 6.5, indicating medium severity, with network attack vector, low attack complexity, requiring low privileges, no user interaction, and impacting availability only. Affected versions include >=8.12.0 <=8.19.21, >=9.0.0 <=9.4.6, and >=9.5.0 <=9.5.3. There is no vendor advisory or patch information provided, so remediation status is unknown.
Potential Impact
The vulnerability allows an attacker with low privileges and network access to cause denial of service by exhausting system resources. It does not affect confidentiality or integrity but impacts availability of the Elasticsearch service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit access to trusted users with appropriate privileges to reduce risk.
CVE-2026-94398: 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
This vulnerability in Elasticsearch is classified as CWE-400 (Uncontrolled Resource Consumption) and can lead to denial of service by excessive allocation of system resources (CAPEC-130). The CVSS 3.1 base score is 6.5, indicating medium severity, with network attack vector, low attack complexity, requiring low privileges, no user interaction, and impacting availability only. Affected versions include >=8.12.0 <=8.19.21, >=9.0.0 <=9.4.6, and >=9.5.0 <=9.5.3. There is no vendor advisory or patch information provided, so remediation status is unknown.
Potential Impact
The vulnerability allows an attacker with low privileges and network access to cause denial of service by exhausting system resources. It does not affect confidentiality or integrity but impacts availability of the Elasticsearch service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit access to trusted users with appropriate privileges to reduce risk.
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: 6ab83075f7a7c54106b6818a
Added to database: 09/26/2026, 20:52:05 UTC
Last enriched: 09/26/2026, 21:02:57 UTC
Last updated: 09/28/2026, 00:47:33 UTC
Views: 27
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