anthropics/claude-code · Security
@anthropic-ai/claude-code has Sed Command Validation Bypass that Allows Arbitrary File Writes
- GHSA ID
- GHSA-7mv8-j34q-vp7q
- CVE ID
- CVE-2025-64755
- Severity
- high
- Published
- Updated
- CVSS v4
- 8.7 · 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
Description
Due to an error in sed command parsing, it was possible to bypass the Claude Code read-only validation and write to arbitrary files on the host system.
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 Adam Chester - SpecterOps for reporting this issue!
CWEs
- CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')