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CVE-2026-107361— Authentication Bypass Using an Alternate Path or Channel in Malcolm

Quick assessment

Affected
CISA Malcolm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Malcolm 中的 Arkime 实时捕获服务（arkime-live）以 network_mode: host 模式运行，暴露了所有网络接口上的端口 8005（viewHost=0.0.0.0）。Arkime 信任来自任何 IP 地址的 X-Forwarded-User 头（userAuthIps=::,0.0.0.0/0），并自动创建具有完全访问权限的用户。密码秘钥（passwordSecret）被硬编码为公开值 "Malcolm"。网络相邻的攻击者可以通过直接连接到端口 8005 并使用伪造的身份头，绕过

CVSS 4.2 · Medium

Affected Version Matrix 2

VendorProduct Version RangeStatus
CISA Malcolm ≤ 26.07.1 affected
26.08.0 unaffected
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I. Basic Information for CVE-2026-107361

Vulnerability Information
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Vulnerability Title
Authentication Bypass Using an Alternate Path or Channel in Malcolm
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
CISA Malcolm 0 ~ 26.07.1 -

II. Public POCs for CVE-2026-107361

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III. Intelligence Information for CVE-2026-107361

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Other References for CVE-2026-107361 (2)

Same Patch Batch · CISA · 2026-10-08 · 7 CVEs total

CVE-2026-107333 8.1 HIGH Incorrect Authorization in Malcolm
CVE-2026-107362 7.1 HIGH Server-Side Request Forgery in Malcolm
CVE-2026-107337 7.1 HIGH Cross-Site Request Forgery in Malcolm
CVE-2026-107336 6.5 MEDIUM Authentication Bypass by Spoofing in Malcolm
CVE-2026-107335 6.5 MEDIUM Improper Handling of Highly Compressed Data in Malcolm
CVE-2026-107334 5.4 MEDIUM Incorrect Authorization in Malcolm

IV. Related Vulnerabilities

Same product: Malcolm
Same vendor: CISA
Same weakness: CWE-288

V. Comments for CVE-2026-107361

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