---
id: CVE-2026-47090
title: Claude HUD 0.0.12 Terminal Injection via OSC 8 Hyperlinks
summary: >-
  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 …
severity: medium
cvss: 4.6
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-150
vendor: jarrodwatts
product: claude-hud
affected:
  - claude-hud <= 0.0.12
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-05-19T12:48:31.952470Z'
published: '2026-05-18'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:03:59.406Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-47090'
references:
  - url: 'https://github.com/jarrodwatts/claude-hud/issues/485'
  - url: 'https://github.com/jarrodwatts/claude-hud/pull/487'
  - url: >-
      https://github.com/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc30
  - url: >-
      https://www.vulncheck.com/advisories/claude-hud-terminal-injection-via-osc-8-hyperlinks
tags:
  - cve.org
epss: 0.00104
epssPercentile: 0.01009
ingestedAt: '2026-11-08T14:51:22.417Z'
---

## Overview

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.

## Affected

- `claude-hud <= 0.0.12`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.