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org.elasticsearch/elasticsearch 9.4.0 | Vu… | Sonatype Guide
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maven
org.elasticsearch
elasticsearch
9.4.0
elasticsearch 9.4.0
org.elasticsearch
Published
May 5, 2026
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compliance
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6.5
CVE-2026-63140
Reachable Assertion (CWE-617) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). A specially crafted search request containing a null value in a specific query clause causes an internal assertion to be raised during query parsing. Because Elasticsearch treats assertion failures as fatal errors, this terminates the affected node process. A low-privileged authenticated user with read access to at least one index can exploit this condition with a single request to cause a node to terminate, disrupting search availability. In a single-node deployment this fully stops Elasticsearch; in a multi-node cluster it reduces cluster capacity for each affected node.
affected
Severity
Medium
Published
Jul 22, 2026
4.9
CVE-2026-56149
Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.
affected
Severity
Medium
Published
Jul 3, 2026
6.5
CVE-2026-56148
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted query that causes excessive resource consumption while the request is processed, which may render the affected node unavailable.
affected
Severity
Medium
Published
Jul 2, 2026
