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

Q: 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/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. EPSS exploitation probability: 0.0%.

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

2.4

CVSS 4.0 · Vendor: VulnCheck

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/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

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

CVSS VectorVendor: VulnCheck

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Scope

Lifecycle Timeline

Source Code Evidence Fetched

May 18, 2026 - 20:31 vuln.today

Analysis Generated

May 18, 2026 - 20:31 vuln.today

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.

AnalysisAI

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.