CVEvulnerability

CVE-2026-63144

6.5 MEDIUM Published 2026-07-21 Modified 2026-10-24 Official page ↗
Status
Analyzed
Published
2026-07-21
Last modified
2026-10-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-674

Description

Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via a specially crafted search request submitted by a low-privileged authenticated user. A user with read-level index access can submit a request that triggers unbounded recursive processing within the Elasticsearch query evaluation component, causing a fatal error that terminates the affected node. In single-node deployments, this results in complete service outage; in multi-node clusters, it causes repeated node restarts and sustained availability degradation.

Affected configurations

• elastic elasticsearch (>= 8.19.0 < 8.19.19) • elastic elasticsearch (>= 9.3.0 < 9.3.8) • elastic elasticsearch (>= 9.4.0 < 9.4.4)

Related

Weakness · CWE (1)

  • CWE-674 Uncontrolled Recursion weakness

References