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.
History

Mon, 23 Mar 2026 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Elasticsearch
Elasticsearch packetbeat
CPEs cpe:2.3:a:elasticsearch:packetbeat:*:*:*:*:*:*:*:*
Vendors & Products Elasticsearch
Elasticsearch packetbeat

Fri, 20 Mar 2026 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Elastic
Elastic packetbeat
Vendors & Products Elastic
Elastic packetbeat

Thu, 19 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 19 Mar 2026 17:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Improper Validation of Array Index in Packetbeat Leading to Denial of Service
Weaknesses CWE-129
References
Metrics cvssV3_1

{'score': 5.7, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: elastic

Published:

Updated: 2026-03-19T17:52:50.955Z

Reserved: 2026-02-16T16:42:05.773Z

Link: CVE-2026-26933

cve-icon Vulnrichment

Updated: 2026-03-19T17:52:38.936Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-19T18:16:21.497

Modified: 2026-03-23T13:33:43.510

Link: CVE-2026-26933

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-25T11:55:17Z