Elasticsearch 8.19.9, 9.1.9, and 9.2.3 Security Update (ESA-2025-33)

Announcements Security Announcements
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Elasticsearch Allocation of Resources Without Limits or Throttling (ESA-2025-33)

Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can allow a low-privileged authenticated user to cause Excessive Allocation (CAPEC-130) causing a persistent denial of service (OOM crash) via submission of oversized user settings data.

Affected Versions:

  • 7.x: All versions
  • 8.x: All versions from 8.0.0 up to and including 8.19.8
  • 9.x:
    • All versions from 9.0.0 up to and including 9.1.8
    • All versions from 9.2.0 up to and including 9.2.2

Solutions and Mitigations:

The issue is resolved in version 8.19.9, 9.1.9, and 9.2.3.

Severity: CVSSv3.1: 6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE ID: CVE-2025-68384