๐Ÿ›ก๏ธ CVE-2026-25725
๐Ÿ”ด CVSS 10.0 โ€” Critical โœ… No Known Exploit CWE-501 NVD
10.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Claude Code is an agentic coding tool. Prior to version 2.1.2, Claude Code's bubblewrap sandboxing mechanism failed to properly protect the .claude/settings.json configuration file when it did not exist at startup. While the parent directory was mounted as writable and .claude/settings.local.json was explicitly protected with read-only constraints, settings.json was not protected if it was missing. This allowed malicious code running inside the sandbox to create this file and inject persistent hooks (such as SessionStart commands) that would execute with host privileges when Claude Code was restarted. This issue has been patched in version 2.1.2.

Details

Severity HIGH
CVSS Score 10.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE CWE-501
Public Exploit โœ… No
Source NVD
Published 2026-02-06
Updated 2026-06-02
Modified 2026-02-06
Fix URL N/A

Affected Packages

Software From version Fixed in
@anthropic-ai/claude-code โ€” โ€”
claude-code โ€” 2.1.2

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