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

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

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 May 2026
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-4524-x6pc-rr9x

## 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 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-47091?

It affects 1 product.


Products: 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.

## Is CVE-2026-47091 being exploited?

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

## Other vulnerabilities in jarrodwatts claude-hud

- [CVE-2026-47092](https://insights.sbomify.com/CVE-2026-47092/): Claude HUD 0.0.12 Arbitrary Command Execution via COMSPEC Environment Variable (high 7.3)
- [CVE-2026-47090](https://insights.sbomify.com/CVE-2026-47090/): Claude HUD 0.0.12 Terminal Injection via OSC 8 Hyperlinks (low 2.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-47091 and fix it if it is affected.

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

Affected product: jarrodwatts claude-hud. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-47091/ (Markdown: https://insights.sbomify.com/CVE-2026-47091/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-47091
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-47091
- OSV: https://osv.dev/vulnerability/CVE-2026-47091

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-47091/
Summaries are generated and may contain mistakes; the official description above is the record.