What is CVE-2026-107361?

CVE-2026-107361 is a medium-severity vulnerability in Cisa Malcolm, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 4.2/10. Published 2026-10-08.

How severe is CVE-2026-107361?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Cisa Malcolm

CVE-2026-107361

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.

Published 2026-10-08.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Cisa Malcolm

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

References

Frequently asked questions

What is CVE-2026-107361?: CVE-2026-107361 is a medium-severity vulnerability in Cisa Malcolm, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 4.2/10. Published 2026-10-08.
How severe is CVE-2026-107361?: Medium severity. CVSS v3 base score is 4.2 out of 10.