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CWE

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CVE-2026-47090

Published: May 18, 2026

Modified: May 19, 2026

PUBLISHED

CVSS v3.1

4.6

MEDIUM

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.

Vendor	Product	Versions
jarrodwatts	claude-hud	affected `0 - <= 0.0.12` unaffected `234d9aad919b51326a43bcf90b45ae35c23afc30`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

References

https://github.com/jarrodwatts/claude-hud/issues/485

technical-description

https://github.com/jarrodwatts/claude-hud/pull/487

issue-tracking

https://github.com/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc30

patch

https://www.vulncheck.com/advisories/claude-hud-terminal-injection-via-osc-8-hyperlinks

third-party-advisory

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