Claude HUD through 0.0.12, patched in commit 234d9aa, constructs OSC 8 terminal hyperlink escape sequences using raw cwd and branchUrl values without stripping control character...
Date: 2026-05
Affected: jarrodwatts/claude_hud
Attack vector: path-traversal
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2026-47090
CVE-2026-47091
CVE-2026-47092
CWE: CWE-150
CWE-22
CWE-427
CVSS: 4.6 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)

Claude HUD through 0.0.12, patched in commit 234d9aa, constructs OSC 8 terminal hyperlink escape sequences using raw cwd and branchUrl values without stripping control characters or encoding embedded values, allowing attackers to inject arbitrary ANSI codes into terminal sessions. Attackers can embed ESC+backslash sequences in the current working directory or branch URL to execute malicious ANSI codes including text color changes, forged prompts, and OSC 52 clipboard writes, or trigger outbound HTTP requests to attacker-controlled remotes when hyperlinks are clicked.


Mitigations:

Architectural layers (MAESTRO):