{"id":"CVE-2026-55607","revision":"34cf89443b6f4ef8bdebce7816343700","records":[{"revision":"34cf89443b6f4ef8bdebce7816343700","observedAt":"2026-10-25T14:19:05.298+00:00","statement":{"source":"nvd","id":"CVE-2026-55607","aliases":[],"title":"Claude Code is an agentic coding tool.  From 2.1.38 until 2.1.163, Claude Code's worktree handling allowed creation of worktrees named \".git\" and navigation to worktrees outside the sandbox context, enabling git directory confusion attacks.…","description":"Claude Code is an agentic coding tool.  From 2.1.38 until 2.1.163, Claude Code's worktree handling allowed creation of worktrees named \".git\" and navigation to worktrees outside the sandbox context, enabling git directory confusion attacks. By exploiting symlink manipulation and git fsmonitor execution during worktree operations, an attacker could overwrite files in the user's home directory (such as .zshenv), leading to code execution outside of seatbelt sandbox restrictions. Reliably exploiting this required the user to clone a malicious repository containing prompt injection content and run Claude Code against it. This vulnerability is fixed in 2.1.163.","state":0,"publishedAt":"2026-06-29T15:16:41.597+00:00","modifiedAt":"2026-06-30T16:17:39.403+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":7.7,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://github.com/anthropics/claude-code/security/advisories/GHSA-7835-87q9-rgvv"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55607","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-22","CWE-59","CWE-78"],"productCriteria":["cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-06-29T15:16:41.597","lastModified":"2026-06-30T16:17:39.403"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-55607","identifiers":["CVE-2026-55607"]},"retained":false,"historicalAffected":[]}],"coverage":[]}