Claude HUD 0.0.12 Terminal Injection via OSC 8 Hyperlinks
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
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 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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| jarrodwatts | claude-hud | up to 0.0.12 | — | Patch available | CNA |
- claude-hud Vendorjarrodwatts Affected up to 0.0.12 Fixed in — Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:jarrodwatts:claude_hud:*:*:*:*:*:claude_code:*:* | up to 0.0.12 | Vulnerable | jarrodwatts |
- cpe:2.3:a:jarrodwatts:claude_hud:*:*:*:*:*:claude_code:*:* Versions up to 0.0.12 Vulnerable ·jarrodwatts
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-47090
- 2026-10-03 Alias added: GHSA-f378-wf84-8j5h
References
More jarrodwatts Claude Hud vulnerabilities
- TI-2026-34694 Claude HUD 0.0.12 Arbitrary Command Execution via COMSPEC Environment Variable CVSS 4.0HIGH 7.3
- TI-2026-34693 Claude HUD 0.0.12 Path Traversal via transcript_path CVSS 4.0MEDIUM 4.8
Sources
- CVE-2026-47090 · CVE Program
- CVE-2026-47090 · NVD
- FIRST EPSS
- GHSA-f378-wf84-8j5h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences