CVE-2026-56143

published 2026-09-01

CVE-2026-56143: 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…

Priority P4 25 medium 4.9 CVSS 3.1

AV N AC L PR H UI N S U C N I N A H

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 request that causes excessive memory consumption, which may render the affected node unavailable.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
elastic	elasticsearch	>= 8.0.0 < 8.19.20	8.19.20
elastic	elasticsearch	8.0.0 – 8.19.19	—
elastic	elasticsearch	>= 9.0.0 < 9.3.0	9.3.0
elastic	elasticsearch	9.0.0 – 9.2.8	—

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CWE-770