Vulnerability in Jarrodwatts Claude-Hud
CVE-2026-47090
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.001 (3.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Jarrodwatts Claude-Hud — versions 0, 234d9aad919b51326a43bcf90b45ae35c23afc30
- Jarrodwatts Claude Hud
Weakness classification (CWE)
References
- github.com/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc… (Patch, patch)
- github.com/jarrodwatts/claude-hud/issues/485 (issue-tracking, technical-description, Issue Tracking)
- github.com/jarrodwatts/claude-hud/pull/487 (issue-tracking, Patch, Issue Tracking)
- www.vulncheck.com/advisories/claude-hud-terminal-injection-via-osc-8-hyperlinks (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-47090?
- CVE-2026-47090 is a medium-severity vulnerability in Jarrodwatts Claude-Hud, classified under CWE-150. CVSS score: 4.6/10. Published 2026-05-18.
- How severe is CVE-2026-47090?
- Medium severity. CVSS v3 base score is 4.6 out of 10.