CVE-2026-94398: CWE-400 Uncontrolled Resource Consumption in Elastic Elasticsearch
CVE-2026-94398 is a medium severity vulnerability in Elastic Elasticsearch involving uncontrolled resource consumption (CWE-400). This flaw can lead to denial of service conditions caused by excessive allocation of resources. The vulnerability affects versions 8.12.0, 9.0.0, and 9.5.0 of Elasticsearch. There is no indication of active exploitation in the wild. No patch or official remediation information is provided in the available data.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-94398) in Elasticsearch is classified as CWE-400, indicating uncontrolled resource consumption. It can cause denial of service through excessive allocation of resources, referenced as CAPEC-130. The CVSS 3.1 base score is 6.5 (medium severity), with network attack vector, low attack complexity, requiring low privileges and no user interaction. The impact is limited to availability (denial of service) without confidentiality or integrity loss. Affected versions explicitly include 8.12.0, 9.0.0, and 9.5.0. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation of this vulnerability can cause denial of service by exhausting system resources, impacting the availability of Elasticsearch services. There is no reported impact on confidentiality or integrity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor Elasticsearch resource usage and consider implementing resource limits or rate limiting to mitigate potential denial of service conditions.
CVE-2026-94398: CWE-400 Uncontrolled Resource Consumption in Elastic Elasticsearch
Description
CVE-2026-94398 is a medium severity vulnerability in Elastic Elasticsearch involving uncontrolled resource consumption (CWE-400). This flaw can lead to denial of service conditions caused by excessive allocation of resources. The vulnerability affects versions 8.12.0, 9.0.0, and 9.5.0 of Elasticsearch. There is no indication of active exploitation in the wild. No patch or official remediation information is provided in the available data.
CVSS v3.1
Score 6.5medium
Affected software
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 (CVE-2026-94398) in Elasticsearch is classified as CWE-400, indicating uncontrolled resource consumption. It can cause denial of service through excessive allocation of resources, referenced as CAPEC-130. The CVSS 3.1 base score is 6.5 (medium severity), with network attack vector, low attack complexity, requiring low privileges and no user interaction. The impact is limited to availability (denial of service) without confidentiality or integrity loss. Affected versions explicitly include 8.12.0, 9.0.0, and 9.5.0. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation of this vulnerability can cause denial of service by exhausting system resources, impacting the availability of Elasticsearch services. There is no reported impact on confidentiality or integrity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor Elasticsearch resource usage and consider implementing resource limits or rate limiting to mitigate potential denial of service conditions.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-8j5h-hqqm-4pfr
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-94398"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab89bd2f7a7c54106941fc0
Added to database: 09/27/2026, 04:30:10 UTC
Last enriched: 09/27/2026, 04:38:35 UTC
Last updated: 09/27/2026, 15:47:33 UTC
Views: 3
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