Disclosure summary
Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with connector management privileges could cause the cluster to allocate an uncontrolled amount of memory when connector resources with an excessively large `description` field are created and subsequently accessed, exhausting available heap memory and crashing the affected node.
Source-reported weakness categories
CWE-789
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-2026-103005
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":"9.5.5"} |
Original records & references
- NIST NVD record
- CVE Program record
- discuss.elastic.co — Vendor Advisory
PUBLISHED 2026-10-06T16:17:13-04:00
MODIFIED 2026-10-09T11:45:28-04:00
INGESTED 2026-10-10T20:50:46-04:00