CVE-2026-47090 json
Claude HUD 0.0.12 Terminal Injection via OSC 8 Hyperlinks
published 2026-05-18 5 mo ago modified 2026-11-08 27 h ago also EUVD-2026-30801
- cvss
- 4.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 1%
- public exploits
- 0
- none known
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.
Patch / fix
- github.com/jarrodwatts/claude-hud@234d9aa commit
- github.com/jarrodwatts/claude-hud#487 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.10% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| CNA | 3.1 | 4.6 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| CNA | 4.0 | 2.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- jarrodwatts claude-hud
Classification
- Weakness
-
- CWE-150 Improper Neutralization of Escape, Meta, or Control Sequences
References
-
github.com
/jarrodwatts/claude-hud/pull/487
issue-tracking, patch
-
github.com
/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc30
patch
-
github.com
/jarrodwatts/claude-hud/issues/485
issue-tracking
-
vulncheck.com
/advisories/claude-hud-terminal-injection-via-osc-8-hyperlinks
third-party-advisory
Sources
- CVE List CVE-2026-47090
- NVD CVE-2026-47090
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