CVE-2026-47091 Claude HUD 0.0.12 Path Traversal via transcript_path

Medium 4.8 Published 18 May 2026 Updated 14 Jul 2026

Attackers can read arbitrary files via unvalidated transcript_path input in Claude HUD, exposing sensitive data and leaving forensic traces.

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

What is CVE-2026-47091?

CVE-2026-47091 is a medium-severity path traversal vulnerability in jarrodwatts claude-hud, published on 18 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Claude HUD through 0.0.12, patched in commit 234d9aa, contains a path traversal vulnerability that allows attackers to read arbitrary files by supplying an unvalidated transcript_path value via stdin JSON. Attackers can access any file readable by the process and the file metadata is written to a persistent cache file with insufficient permissions, creating a forensic record of accessed paths that survives process exit.

Weakness: CWE-22

Which versions are affected by CVE-2026-47091?

It affects 1 product.

Products include Jarrodwatts Claude Hud.

How do I fix CVE-2026-47091?

No fix has been published for CVE-2026-47091 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-47091 being exploited?

There is no known exploitation of CVE-2026-47091 in the wild and no public exploit code.

Sources

Also known as GHSA-4524-x6pc-rr9x.