Claude HUD vulnerabilities

Claude HUD through version 0.0.12, patched in commit 234d9aa, contains a command injection vulnerability that allows local attackers to execute arbitrary commands by manipulating the COMSPEC environment variable. Attackers can set COMSPEC to an arbitrary binary path before claude-hud performs its version check, causing execFile() to execute the attacker-supplied executable with cmd.exe arguments, resulting in arbitrary code execution on Windows systems.

Claude HUD through version 0.0.12 contains a path traversal vulnerability that allows attackers to read arbitrary files by supplying an unvalidated transcript_path value via stdin JSON. File metadata is written to a persistent cache file with insufficient permissions, creating a forensic record of accessed paths that survives process exit.

A vulnerability in Claude HUD up to version 0.0.12 (fixed in commit 234d9aa) allows injection of arbitrary ANSI codes into terminal sessions due to improper construction of OSC 8 hyperlink escape sequences. Attackers can embed ESC+backslash sequences in the current working directory or branch URL, leading to execution of malicious ANSI codes such as text color changes, forged prompts, OSC 52 clipboard writes, or outbound HTTP requests when hyperlinks are clicked.