CVE-2026-47090

LOW
INFO Priority: 0.00 BB Relevance: 20/100
Published: 2026-05-18 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: Active
S: X
AT: None
VC: None
VI: None
VA: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
jarrodwatts claude_hud < 0.0.12

Bug Bounty Relevance

20 / 100
✓ Low complexity

CVSS Score

2.4 / 10.0 v4.0
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

0.10%
Raw Score 0.001040
Percentile 1.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00104
2026-10-28
0.00104

Intelligence Sources

nvd ref →