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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-72684

Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service

Description

A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the scope of the existing memory accounting controls that were intended to constrain it. The resulting out-of-memory condition is fatal and terminates the affected node process, causing a denial of service.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Elastic Elasticsearch

Default version status: unaffected

  • 8.0.0 to ≤ 8.19.19affected
  • 9.0.0 to ≤ 9.4.4affected

References