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TI-2026-69641 Aliases CVE-2026-107361GHSA-9jvx-84p5-48xr

Authentication bypass in Malcolm's Arkime live capture service

Priority MEDIUM 53CWE-288Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-288.

Summary

Malcolm from 0 through 26.07.1 contains an authentication bypass (CWE-288) in its Arkime live capture service. The service listens on port 8005 on all network interfaces and trusts identity headers from any address, so a network-adjacent attacker can connect directly, bypass the nginx proxy and gain full access without privileges or user interaction.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00229 13th percentileScored 2026-11-07
Fix Fixed Malcolm (CISA): 26.08.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CISAMalcolmup to 26.07.126.08.0Patch availableCNA
  • Malcolm VendorCISA Affected up to 26.07.1 Fixed in 26.08.0 Patch available CNA

Remediation

Upgrade Malcolm to version 26.08.0, the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Malcolm (CISA) Fixed in 26.08.0

Timeline

  1. 2026-10-08 Threatist record created from CVE-2026-107361
  2. 2026-10-09 Alias added: GHSA-9jvx-84p5-48xr
  3. 2026-10-09 CISA SSVC decision points changed
  4. 2026-10-09 Priority changed: LOW → MEDIUM

References

Other 2

  • TI-2026-69642 Server-side request forgery in Malcolm file upload component CVSS 3.1HIGH 7.1
  • TI-2026-69640 Cross-Site Request Forgery in Malcolm CVSS 3.1HIGH 7.1
  • TI-2026-69638 Compressed file uploads in Malcolm can exhaust shared disk space CVSS 3.1MEDIUM 6.5
  • TI-2026-69637 Incorrect authorization in Malcolm exposes role-restricted paths CVSS 3.1MEDIUM 5.4
  • TI-2025-24590 CISA Thorium download stream divide by zero CVSS 4.0MEDIUM 5.3
  • TI-2025-24585 CISA Thorium insecure downloaded file path validation CVSS 4.0MEDIUM 5.3
See all 33 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences