CVE-2026-86121
Cua computer-server before 0.3.42 Unauthenticated RCE via Desktop Control
CVSS 4.0 9.3 CRITICALCVSS 3.1 9.8 CRITICALCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-86121
PublishedCua 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.
Read the publisher's advisoryAffected versions, risk and source history
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CVE-2026-86121 · CVE overview and exploitation status
cve-program · CVE-2026-86121
- https://github.com/trycua/cua/issues/1892
- https://github.com/trycua/cua/blob/10a2e71792db/libs/python/computer-server/computer_server/main.py
- https://github.com/trycua/cua/blob/10a2e71792db/libs/python/computer-server/computer_server/cli.py
- https://github.com/trycua/cua/commit/59cf25c0ec54
- https://github.com/trycua/cua
- https://www.vulncheck.com/advisories/cua-computer-server-before-0.3.42-unauthenticated-rce-via-desktop-control
Related changes
Linked by CVE identifierNo related changes are available here.