GitHub Advisoryadvisory · npm

GHSA-x56v-x2h6-7j34 Claude Code echo command allowed bypass of user approval prompt for command execution

HIGH Published 2025-08-04 Modified 2025-08-05 Official page ↗
Aliases
CVE-2025-54795
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-78
Reviewed
2025-08-04

Affected packages

• npm @anthropic-ai/claude-code: < 1.0.20 → fixed in 1.0.20

Description

Due to an error in command parsing, it was possible to bypass the Claude Code confirmation prompt to trigger execution of an untrusted command. Reliably exploiting this requires the ability to add untrusted content into a Claude Code context window. Users on standard Claude Code auto-update received this fix automatically after release. Current users of Claude Code are unaffected, as versions prior to 1.0.24 are deprecated and have been forced to update. Thank you to Elad Beber (Cymulate) for reporting this issue!

Related

Alias · CVE (1)

Weakness · CWE (1)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References