#VU121292 Improper Validation of Array Index in Packetbeat - CVE-2026-0529
Published: January 13, 2026
Vulnerability identifier: #VU121292
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-0529
CWE-ID: CWE-129
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Packetbeat
Packetbeat
Software vendor:
Elastic Stack
Elastic Stack
Description
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to improper input validation in Packetbeat’s MongoDB protocol parser. A remote attacker can send a malformed payload to a monitored network interface where MongoDB protocol parsing is enabled and perform a denial of service attack.
Remediation
Install updates from vendor's website.