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OpenAdvisories
Medium · 6.5 CVE-2026-0529 EUVD-2026-2519GHSA-c27p-chmh-jjv6

Improper Validation of Array Index in Packetbeat Leading to Overflow Buffers

Published Jan 14, 2026 · Updated Jan 14, 2026 · Assigned by elastic

Description

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.

Affected products

VendorProductAffectedFixed
Elastic Packetbeat 7.0.0 – ≤ 7.17.29, 8.0.0 – ≤ 8.19.9, 9.0.0 – ≤ 9.1.9, 9.2.0 – ≤ 9.2.3 —

References