What is the CVSS score of CVE-2026-47090?

CVE-2026-47090 has a CVSS 4.0 base score of 2.4 (Low). CVSS vector: 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. EPSS exploitation probability: 0.0%.

Is there a patch available for CVE-2026-47090?

Yes, a patch is available for CVE-2026-47090. Update the affected software to the latest version immediately.

Claude Hud CVE-2026-47090

EUVD-2026-30801 LOW

Improper Neutralization of Escape, Meta, or Control Sequences (CWE-150)

2026-05-18 VulnCheck

GHSA-f378-wf84-8j5h

RCE Claude Hud Jarrodwatts

2.4

CVSS 4.0 · Vendor: VulnCheck

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Vulnerability Assessment

Weakness

CWE

CWE-150

OWASP Top 10:2025

A05:2025 - Injection

ASVS 5.0

V1 - Encoding and Sanitization Escape character neutralization

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).

Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – May 18, 2026

Terminal injection in Claude HUD through version 0.0.12 allows an attacker who controls a Git branch name or working directory path to embed arbitrary ANSI escape sequences into terminal sessions via unsanitized OSC 8 hyperlink construction. When a user runs Claude HUD in an affected terminal emulator and clicks a rendered project or branch hyperlink, injected sequences—including OSC 52 clipboard writes and forged prompts—are processed by the terminal. The vulnerability has no public exploit identified at time of analysis and is not listed in CISA KEV, but the clipboard-poisoning vector carries meaningful risk for developers routinely cloning untrusted repositories.

Affected VersionsENISA

claude-hud patch: 234d9aad919b51326a43bcf90b45ae35c23afc30

claude-hud 0 ≤0.0.12

Affected Packages

euvd claude_hud no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (VulnCheck) PRIMARY 2.4 LOW

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

Primary rating from Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

Attack Vector

Local

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

Active

Vulnerable system: Confidentiality

None

Vulnerable system: Integrity

None

Vulnerable system: Availability

None

Subsequent system: Confidentiality

Low

Subsequent system: Integrity

Low

Subsequent system: Availability

None

Lifecycle Timeline

Severity Changed

May 18, 2026 - 20:22 NVD

MEDIUM LOW

CVSS changed

May 18, 2026 - 20:22 NVD

4.6 (MEDIUM) 2.4 (LOW)

DescriptionCVE.org

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.

Threat Intelligence Overview

EPSS Score

0.0%

Top 98% exploitable

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity LOW

CISA KEV No

Public POC No

EPSS 0.0%

Patch available Yes

Active threat No

Deciding rule

LOW severity (CVSS 0.1-3.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.