CVE-2025-68388: Elasticsearch Packetbeat

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Allocation of resources without limits or throttling (CWE-770) allows an unauthenticated remote attacker to cause excessive allocation (CAPEC-130) of memory and CPU via the integration of malicious IPv4 fragments, leading to a degradation in Packetbeat.

Affected products

• Elasticsearch Packetbeat: from 8.6.0, before 8.19.9 (fixed in 8.19.9); from 9.0.0, before 9.1.9 (fixed in 9.1.9); from 9.2.0, before 9.2.3 (fixed in 9.2.3)

Published 2025-12-18. Last modified 2026-06-17.