CVE-2026-86121 (GCVE-0-2026-86121)

Vulnerability from cvelistv5 – Published: 2026-09-05 09:59 – Updated: 2026-09-24 14:21
VLAI
Title
Cua computer-server before 0.3.42 Unauthenticated RCE via Desktop Control
Summary
Cua computer-server versions before 0.3.42 skip authentication when the CONTAINER_NAME environment variable is unset and bind to all interfaces by default, allowing unauthenticated attackers to execute arbitrary commands. Attackers can reach TCP port 8000 to run shell commands via the run_command endpoint, read and write arbitrary files through file operation endpoints, and access interactive PTY shells without authentication.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 17:25 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
trycua cua-computer-server Affected: 0 , < 0.3.42 (semver)
Create a notification for this product.
Date Public
2026-06-13 00:00
Credits
George Chen
Show details on NVD website
To clipboard 

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