CVE-2025-66032 is a critical arbitrary code execution vulnerability affecting Anthropic Claude Code versions prior to 1.0.93. The flaw stems from errors in parsing shell commands, specifically related to $IFS and short CLI flags, allowing attackers to bypass read-only validation. With a CVSS score of 9.8 (Critical), this vulnerability permits complete compromise of confidentiality, integrity, and availability, requiring the ability to inject untrusted content into a Claude Code context window for reliable exploitation. While there is no known active exploitation, public exploit code, or KEV listing, the vulnerability has garnered some community discussion, indicating awareness.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.0.93CPE matchmatch criteria | cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/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
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.