🛡️ CVE-2026-26933
🟡 CVSS 5.7 — Medium ✅ No Known Exploit NVD
5.7
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity Medium
CVSS Score 5.7
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2026-04-07
Updated 2026-06-15
Modified 2026-05-13

Affected Packages

Software From version Fixed in
github.com/elastic/beats — —
github.com/elastic/beats/v7 — —
packetbeat 9.0.0 9.2.5

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