Improper Validation of Array Index (CWE-129) in multiple protocol parser components in Packetbeat can lead Denial of Service via Input Data Manipulation (CAPEC-153). An attacker with the ability to send specially crafted, malformed network packets to a monitored network interface can trigger out-of-bounds read operations, resulting in application crashes or resource exhaustion. This requires the attacker to be positioned on the same network segment as the Packetbeat deployment or to control traffic routed to monitored interfaces.
References
| Link | Resource |
|---|---|
| https://discuss.elastic.co/t/packetbeat-8-19-11-9-2-5-security-update-esa-2026-11/385533 | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
23 Mar 2026, 13:33
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:elasticsearch:packetbeat:*:*:*:*:*:*:*:* | |
| First Time |
Elasticsearch packetbeat
Elasticsearch |
|
| References | () https://discuss.elastic.co/t/packetbeat-8-19-11-9-2-5-security-update-esa-2026-11/385533 - Vendor Advisory |
19 Mar 2026, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-03-19 18:16
Updated : 2026-03-23 13:33
NVD link : CVE-2026-26933
Mitre link : CVE-2026-26933
CVE.ORG link : CVE-2026-26933
JSON object : View
Products Affected
elasticsearch
- packetbeat
CWE
CWE-129
Improper Validation of Array Index