CVE-2026-107361: Cisa Malcolm

Medium severity, CVSS 4.2. EPSS: 0.2% chance of exploitation in the next 30 days.

The Arkime live capture service (arkime-live) in Malcolm runs with network_mode: host, exposing port 8005 on all network interfaces (viewHost=0.0.0.0). Arkime trusts the X-Forwarded-User header from any IP address (userAuthIps=::,0.0.0.0/0) and auto-creates users with full access. The passwordSecret is hardcoded to the public value "Malcolm". A network-adjacent attacker bypasses nginx entirely by connecting directly to port 8005 with a forged identity header.

Affected products

• Cisa Malcolm: up to and including 26.07.1

Published 2026-10-08. Last modified 2026-10-08.