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CVE-2026-26933

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CVE-2026-26933

Published: Mar 19, 2026

Modified: Mar 19, 2026

PUBLISHED

CVSS v3.1

5.7

MEDIUM

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.

VendorProductVersions

Elastic

Packetbeat

affected
9.0.0 - <= 9.2.4
affected
8.0.0 - <= 8.19.10

Weaknesses (CWE)

CWE-129

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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