CVE-2026-102404: CWE-400 Uncontrolled Resource Consumption in Elastic Elasticsearch
Description
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can submit a specially crafted query that causes uncontrolled memory growth in the query processing engine, resulting in an out-of-memory condition that terminates the Elasticsearch node. The condition can be triggered repeatedly, including by queries embedded in shared resources, causing persistent cluster unavailability.
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 (CWE-400) in Elasticsearch involves uncontrolled resource consumption through excessive memory allocation triggered by crafted queries submitted by low-privileged authenticated users. The uncontrolled memory growth in the query processing engine causes an out-of-memory condition, terminating the Elasticsearch node and leading to denial of service. The condition can be repeatedly triggered, including by queries embedded in shared resources, which can cause persistent unavailability of the cluster.
Potential Impact
An attacker with low-privileged authenticated access can cause denial of service by exhausting memory resources on Elasticsearch nodes, leading to node termination and cluster unavailability. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict low-privileged user access to query submission and monitor for abnormal query patterns that could trigger excessive memory usage.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-09-29T02:06:02.425Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac550e02cdf04f656d8a138
Added to database: 10/06/2026, 19:49:52 UTC
Last enriched: 10/06/2026, 20:04:30 UTC
Last updated: 10/06/2026, 20:28:16 UTC
Views: 7
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.