CVE-2025-68390: Elasticsearch Allocation of Resources Without Limits or Throttling

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-18 · updated 2026-06-17
Weakness: CWE-770

Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can allow an authenticated user with snapshot restore privileges to cause Excessive Allocation (CAPEC-130) of memory and a denial of service (DoS) via crafted HTTP request.

Affected products

Elasticsearch: from 7.0.0 through 7.17.29; from 8.0.0 before 8.19.8; from 9.0.0 before 9.1.8; from 9.2.0 before 9.2.2 — fixed in 8.19.8, 9.1.8, 9.2.2

How to fix

Upgrade to a fixed version: Elasticsearch 8.19.8, 9.1.8, 9.2.2. Check the vendor advisory for mitigations.

References

https://discuss.elastic.co/t/elasticsearch-8-19-8-9-1-8-and-9-2-2-security-update-esa-2025-37/384185

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