GitHub Advisoryadvisory · npm

GHSA-ph6w-f82w-28w6 Claude Code Vulnerable to Arbitrary Code Execution Due to Insufficient Startup Warning

HIGH Published 2025-09-03 Modified 2025-09-03 Official page ↗
Ecosystem
npm
Packages
@anthropic-ai/claude-code
Severity
High
CVSS vector
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
Weaknesses
CWE-94
Reviewed
2025-09-03

Affected packages

• npm @anthropic-ai/claude-code: < 1.0.87 → fixed in 1.0.87

Description

When Claude Code was started in a new directory, it displayed a warning asking, "Do you trust the files in this folder?". This warning did not properly document that selecting "Yes, proceed" would allow Claude Code to execute files in the folder without additional confirmation. This may not have been clear to a user so we have updated the warning to clarify this functionality.  Users on standard Claude Code auto-update will have received this fix automatically. Users performing manual updates are advised to update to the latest version. Thank you to https://hackerone.com/avivdon for reporting this issue!

Related

Weakness · CWE (1)

  • CWE-94 Improper Control of Generation of Code weakness

References