CVE-2025-68384: Elasticsearch Allocation of Resources Without Limits or Throttling

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-18 · updated 2026-09-30
Weakness: CWE-770

Description

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 products

Elasticsearch: from 7.0.0 through 7.17.29; from 8.0.0 before 8.19.9; from 9.0.0 before 9.1.9; from 9.2.0 before 9.2.3 — fixed in 8.19.9, 9.1.9, 9.2.3

How to fix

Upgrade to a fixed version: Elasticsearch 8.19.9, 9.1.9, 9.2.3. Check the vendor advisory for mitigations.

References

https://discuss.elastic.co/t/elasticsearch-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-33/384181

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