{"id":"EUVD-2026-40117","enisaUuid":"5d990170-ea42-3158-9e2f-0f9b36817355","description":"Claude Code is an agentic coding tool.  From 2.1.38 until 2.1.163, Claude Code\u0027s 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\u0027s 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.","datePublished":"Jun 29, 2026, 2:04:00 PM","dateUpdated":"Jun 29, 2026, 3:51:30 PM","baseScore":7.7,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://github.com/anthropics/claude-code/security/advisories/GHSA-7835-87q9-rgvv\n","aliases":"CVE-2026-55607\nGHSA-7835-87q9-rgvv\n","assigner":"GitHub_M","epss":0.69,"enisaIdProduct":[{"id":"e7f47315-b394-35d8-9764-3618ad1d41e3","product":{"name":"claude-code","vendor":{"name":"anthropics"}},"product_version":"2.1.38, \u003c 2.1.163"}],"enisaIdVendor":[{"id":"eed137bb-b46b-3c02-b6ac-5a0f734e6e4a","vendor":{"name":"anthropics"}}],"enisaIdVulnerability":[{"id":"64b72704-99cc-37a3-8e16-fab842c47449","vulnerability":{"id":"CVE-2026-55607","description":"Claude Code is an agentic coding tool.  From 2.1.38 until 2.1.163, Claude Code\u0027s 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\u0027s 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.","datePublished":"Jun 29, 2026, 2:04:00 PM","dateUpdated":"Jun 29, 2026, 3:51:30 PM","status":"PUBLISHED","baseScore":7.7,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://github.com/anthropics/claude-code/security/advisories/GHSA-7835-87q9-rgvv\n","enisa_id":"EUVD-2026-40117\n","assigner":"GitHub_M","epss":0.69,"dataProcessed":"Oct 30, 2026, 7:16:28 AM","vulnerabilityProduct":[{"id":"38ee41f9-40c3-31b8-b46a-829212f46e3c","product":{"name":"claude-code","vendor":{"name":"anthropics"}},"product_version":"2.1.38, \u003c 2.1.163"}],"vulnerabilityVendor":[{"id":"9029ff4c-32b1-355b-9217-4546862f012c","vendor":{"name":"anthropics"}}]}},{"id":"e8be9201-b602-347d-a86f-98552b7f38bc","vulnerability":{"id":"GHSA-7835-87q9-rgvv","description":"Claude Code: Sandbox Escape via Git Worktree Path Confusion Allows Unsandboxed Code Execution","datePublished":"Jul 24, 2026, 4:54:09 PM","dateUpdated":"Jul 24, 2026, 4:54:09 PM","baseScore":0.0,"references":"https://github.com/anthropics/claude-code/security/advisories/GHSA-7835-87q9-rgvv\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-55607\nhttps://github.com/anthropics/claude-code\nhttps://github.com/anthropics/claude-code/releases/tag/v2.1.163\n","enisa_id":"EUVD-2026-40117\n","aliases":"GHSA-7835-87q9-rgvv\nCVE-2026-55607\n","epss":0.0,"dataProcessed":"Oct 25, 2026, 1:58:26 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}}],"enisaIdAdvisory":[]}