Disclosure summary
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to Denial of Service via a specially crafted, deeply nested request submitted to the aggregation feature of the search API. Elasticsearch contains an uncontrolled recursion weakness in its search aggregation processing. An authenticated user with read access to a single index can submit a specially crafted request containing deeply nested aggregation definitions. Processing this request triggers unbounded recursive execution that exhausts the server process's available resources, causing the affected node to terminate. The node does not recover automatically and requires manual intervention to restore service.
Source-reported weakness categories
CWE-674
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-103006
Open original source · Updated Oct 09, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| elastic | elasticsearch | * {"versionStartIncluding":"9.5.0","versionEndExcluding":"9.5.2"} |
Original records & references
- NIST NVD record
- CVE Program record
- discuss.elastic.co — Vendor Advisory
PUBLISHED 2026-10-06T16:17:13-04:00
MODIFIED 2026-10-09T09:26:04-04:00
INGESTED 2026-10-10T20:50:46-04:00