{"id":"CVE-2026-40068","summary":"Claude Code arbitrary code execution via git worktree commondir trust dialog bypass","details":"In versions 2.1.63 through 2.1.83 of Claude Code, the folder trust determination logic used the git worktree commondir file without validating its contents. An attacker could craft a malicious repository with a commondir file pointing to a path the victim had previously trusted, causing Claude Code to bypass its trust confirmation dialog and immediately execute hooks defined in `.claude/settings.json`. Exploitation requires the victim to clone the malicious repository and run Claude Code within it, and the attacker must know or guess a path the victim had already trusted. This issue has been fixed in version 2.1.84.","aliases":["GHSA-q5hj-mxqh-vv77"],"modified":"2026-07-15T01:48:58.016505164Z","published":"2026-05-05T20:52:26.089Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40068.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-20","CWE-77"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40068.json"},{"type":"ADVISORY","url":"https://github.com/anthropics/claude-code/security/advisories/GHSA-q5hj-mxqh-vv77"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40068"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/anthropics/claude-code","events":[{"introduced":"cd4956871a56b07d9d2a6cb538fae109d04c9d57"},{"fixed":"a0d9b87038e72d8a523b61c152ec53299ac6fe94"}],"database_specific":{"extracted_events":[{"introduced":"2.1.63"},{"fixed":"2.1.84"}],"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:*"}}],"versions":["v2.1.83","v2.1.81","v2.1.80","v2.1.79","v2.1.78","v2.1.77","v2.1.76","v2.1.75","v2.1.74","v2.1.73","v2.1.72","v2.1.71","v2.1.70","v2.1.69","v2.1.68","v2.1.66","v2.1.63"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40068.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}