CVE-2026-47090

Claude HUD 0.0.12 Terminal Injection via OSC 8 Hyperlinks

MEDIUM
4.6
CVSS Score
Published: May 18, 2026 at 07:31 PM UTC
Updated: October 26, 2026 at 01:10 PM UTC
1 product affected across 1 vendorClaude Hud

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Severity
MEDIUM4.6
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 0.0.12
Vendor states this is fixed in 234d9aad919b51326a43bcf90b45ae35c23afc30 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.6MEDIUMVulnCheck
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-150

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