CVE-2026-44470: fallo de gravedad alta en anthropics claude-code
Claude Desktop: Local Privilege Escalation via Directory Junction in CoworkVMService
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.5epss 0.2%
The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side. Prior to 1.3834.0, the CoworkVMService component in Claude Desktop for Windows ran as SYSTEM and did not validate whether the VM bundle directory was a real directory or an NTFS directory junction before creating files within it. A local non-elevated user could replace the user-writable VM bundle directory with a directory junction pointing to an attacker-chosen location, causing the service to create a SYSTEM-owned file in an arbitrary directory. This could be leveraged for local privilege escalation. This vulnerability is fixed in 1.3834.0.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
anthropics · claude-codeCVEs relacionadas — anthropics claude-code
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-21852MEDIUMClaude Code Leaks Data via Malicious Environment Configuration Before Trust ConfirmationEPSS 27.5%CVE-2025-59536HIGHClaude Code's startup trust dialog could lead to Command Execution attackEPSS 24.9%CVE-2025-54794HIGHClaude Code Research Preview has a Path Restriction Bypass which could allow unauthorized file accessEPSS 1.5%CVE-2025-54795HIGHClaude Code echo command allowed bypass of user approval prompt for command executionEPSS 1.1%CVE-2025-66032HIGHClaude Code Command Validation Bypass Allows Arbitrary Code ExecutionEPSS 0.7%CVE-2026-39861HIGHClaude Code: Sandbox Escape via Symlink Following Allows Arbitrary File Write Outside WorkspaceEPSS 0.7%