AnthropicGHSA-x56v-x2h6-7j34
Command Injection in Claude Code echo command allowed bypass of user approval prompt for command execution
High8.7CVE-2025-54795 · Published Aug 1, 2025
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!
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| @anthropic-ai/claude-code npm | < v1.0.20 | v1.0.20 |
Details and references
- CVSS 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
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-78
More Anthropic advisories
All Anthropic| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 92025 | Command Injection in Claude Code rg command allowed bypass of user approval prompt for command execution | High8.7 | 1.0.105 |
| Sep 92025 | Claude Code vulnerable to arbitrary code execution caused by maliciously configured git email | High8.7 | 1.0.105 |
| Sep 22025 | Claude Code Vulnerable to Arbitrary Code Execution Due to Insufficient Startup Warning | High8.7 | v1.0.87 |
| Aug 152025 | Permissive Default Allowlist Enables Unauthorized File Read and Network Exfiltration in Claude Code | High7.1 | v1.0.4 |
| Aug 12025 | Anthropic: path traversal | High7.7 | v0.2.111 |
| Jun 232025 | Claude Code IDE extensions allow websocket connections from arbitrary origins | High8.8 | 1.0.24andabove+2 more |