Vulnerability in Elastic Packetbeat
CVE-2026-0529
Improper Validation of Array Index (CWE-129) in Packetbeat’s MongoDB protocol parser can allow an attacker to cause Overflow Buffers (CAPEC-100) through specially crafted network traffic. This requires an attacker to send a malformed payload to a monitored network interface where MongoDB protocol parsing is enabled.
EPSS: 0.002 (9.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Elastic Packetbeat — versions 7.0.0, 8.0.0, 9.0.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-0529?
- CVE-2026-0529 is a medium-severity vulnerability in Elastic Packetbeat, classified under Improper Validation of Array Index. CVSS score: 6.5/10. Published 2026-01-14.
- How severe is CVE-2026-0529?
- Medium severity. CVSS v3 base score is 6.5 out of 10.