CVE-2026-56149

Summary

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 Software

VendorProductVersion RangeStatus
ElasticElasticsearch9.4.0 <= 9.4.2affected
ElasticElasticsearch9.0.0 <= 9.3.5affected
ElasticElasticsearch8.0.0 <= 8.19.16affected

Weaknesses

  • CWE-770: CWE-770 Allocation of Resources Without Limits or Throttling

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References