CVE-2026-47090 Claude HUD 0.0.12 Terminal Injection via OSC 8 Hyperlinks

Low 2.4 Published 18 May 2026 Updated 14 Jul 2026

Attackers can inject ANSI escape sequences via directory or branch names to execute commands or steal clipboard data in Claude HUD terminal sessions.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-47090?

CVE-2026-47090 is a low-severity command injection vulnerability in jarrodwatts claude-hud, published on 18 May 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-150

Which versions are affected by CVE-2026-47090?

It affects 1 product.

Products include Jarrodwatts Claude Hud.

How do I fix CVE-2026-47090?

No fix has been published for CVE-2026-47090 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-47090 being exploited?

There is no known exploitation of CVE-2026-47090 in the wild and no public exploit code.

Sources

Also known as GHSA-f378-wf84-8j5h.