CVE Catalog

CVE-2026-86121

CriticalCVSS 9.8
Published: Translated: NVD NIST

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.

Risk Assessment

The risk includes unauthorized system access, command execution, and file manipulation, potentially leading to full server compromise.

Recommendation

Update Cua computer-server to version 0.3.42 or later, set the CONTAINER_NAME variable, and restrict access to port 8000.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS