CVE-2025-64755

CriticalCVSS 9.8/10Last modified Oct 18, 2026

Description

Claude Code is an agentic coding tool. Prior to version 2.0.31, 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. This issue has been patched in version 2.0.31.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78

Affected software

Vendor	Product	Versions
anthropics	claude-code	< 2.0.31

References

https://github.com/anthropics/claude-code/security/advisories/GHSA-7mv8-j34q-vp7qVendor Advisory

Timeline

Published: Nov 21, 2025
Last modified: Oct 18, 2026
NVD status: Analyzed

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